Deck 2: The Biological Perspective

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Question
The part of the autonomic nervous system that is responsible for reacting to stressful events and bodily arousal is called the ______________ nervous system.

A) central
B) somatic
C) sympathetic
D) parasympathetic
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Question
Every deliberate action you make, such as pedaling a bike, walking, scratching, or smelling a flower, involves neurons in the ______ nervous system.

A) sympathetic
B) somatic
C) parasympathetic
D) autonomic
Question
Which of the following regions contains the primary visual cortex?

A) frontal lobe
B) parietal lobe
C) temporal lobe
D) occipital lobe
Question
Which endocrine gland controls all of the other endocrine glands?

A) thyroid
B) adrenal
C) thymus
D) pituitary
Question
Which part of the nervous system takes the information received from the senses, makes sense out of it, makes decisions, and sends commands out to the muscles and the rest of the body?

A) spinal cord
B) brain
C) reflexes
D) interneurons
Question
Which of the following are tiny sacs in a synaptic knob that release chemicals into the synapse?

A) synaptic vesicles
B) synaptic nodes
C) terminal buttons
D) synaptic gaps
Question
Which of the following are responsible for acting as a facilitator of communication between neurons?

A) motor neurons
B) interneurons
C) sensory neurons
D) reflexes
Question
Which of the following is the section of the brain located at the rear and bottom of each cerebral hemisphere and contains the visual centers of the brain?

A) occipital lobe
B) parietal lobe
C) temporal lobe
D) frontal lobe
Question
Which of the following is the upper part of the brain consisting of two cerebral hemispheres and the structures that connect them?

A) occipital lobe
B) cerebrum
C) corpus callosum
D) cerebellum
Chapter 2 - Quick Quiz 2
Question
Signals from the neurons of which sense are NOT sent to the cortex by the thalamus?

A) hearing
B) smell
C) taste
D) vision
Question
The point at which the nerves from the left side of the body cross over into the right side of the brain, and vice versa, is the ______.

A) reticular activating system
B) pons
C) medulla
D) cerebellum
Question
The two main divisions of the nervous system are the ________ and ________.

A) brain; spinal cord
B) autonomic; somatic nervous systems
C) peripheral nervous system; central nervous system
D) glands; muscles
Question
Which of the following is a function of the right hemisphere?

A) perception, expression of emotion, and recognition of patterns
B) sense of time and rhythm
C) speech, handwriting, and calculation
D) language processing in most individuals
Chapter 2 - Quick Quiz 1
Question
What part of the brain acts as a relay station for incoming sensory information?

A) hypothalamus
B) thalamus
C) cerebellum
D) pituitary gland
Question
A brain-imaging method using radio waves and magnetic fields of the body to produce detailed images of the brain is called ______________.

A) magnetic resonance imaging (MRI)
B) electroencephalography (EEG)
C) positron-emission tomography (PET)
D) computerized axial tomography (CT)
Question
Which part of the neuron is responsible for maintaining the life of the cell?

A) axon
B) soma
C) dendrite
D) cell membrane
Question
Hormones are___________.

A) the female gonads
B) chemicals released into the bloodstream by the endocrine glands
C) chemicals found in the synaptic vesicles, which when released have an effect on the next cell
D) the male gonads
Question
The branchlike structures that receive messages from other neurons are called ______.

A) axons
B) nerve bundles
C) dendrites
D) synapses
Question
The area of the frontal lobe that is devoted to the production of fluent speech is ______ area.

A) Broca's
B) Gall's
C) Wernicke's
D) Korsakoff's
Question
Which of the following neurotransmitters functions as a common inhibitory neurotransmitter in the brain?

A) serotonin
B) norepinephrine
C) acetylcholine
D) GABA
Question
A cell in the human nervous system whose primary function is to provide insulation and structure for neurons on which they may develop and work is called a(n) ________.

A) epidermal cell
B) adipose cell
C) glial cell
D) myelin sheath
Question
The swellings or knobs at the end of the axon are called ________.

A) presynaptic terminals
B) synaptic vesicles
C) synapses
D) receptor sites
Question
What is a function of myelin?

A) to serve as a structure for neurons
B) to monitor neural activity
C) to speed up the neural impulse
D) to produce neurotransmitters
Question
What is the term used to describe the bulbs located at the end of the axon?

A) axon terminals
B) synaptic vesicles
C) synapses
D) receptor sites
Question
Your teacher asks you to describe the sequence of parts of a neuron that the impulse travels during neural conduction. Which of the following sequences will you offer?

A) dendrites, axon, soma, terminal buttons
B) terminal buttons, axon, soma, dendrites
C) axon, soma, dendrites, terminal buttons
D) dendrites, soma, axon, terminal buttons
Question
The nervous system is defined as________.

A) a complex network of cells that carries information to and from all parts of the body
B) a specialized cell that makes up the brain and nervous system
C) all nerves and neurons that are not contained in the brain and spinal cord but that run throughout the body itself
D) a gland located in the brain that secretes human growth hormone
Question
The branchlike structures that receive messages from other neurons are called ________.

A) axons
B) nerve bundles
C) dendrites
D) synapses
Question
The function of the neuron's axon is to ________.

A) carry messages to other cells
B) regulate the neuron's life processes
C) receive messages from neighboring neurons
D) insulate against leakage of electrical impulses
Question
________ receive messages from other neurons and ________ send messages to other neurons.

A) Axons; dendrites
B) Axon; soma
C) Soma; glial cells
D) Dendrites; axons
Question
The branch of life sciences which involves the structure and function of the brain and nervous system, including neurons, nerves, and nervous tissue is called ________.

A) neuroscience
B) bioscience
C) brain scientology
D) neurostemology
Question
Which of the following best represents the order in which a neuron receives and transmits information?

A) dendrites, cell body, axon, axon terminals
B) axon terminals, dendrites, cell body, axon
C) cell body, dendrites, axon terminals, axon
D) axon, cell body, dendrites, axon terminals
Question
Which part of a neuron is attached to the soma and carries messages out to other cells?

A) soma
B) axon
C) dendrite
D) cell membrane
Question
The part of a neuron that contains the nucleus and keeps the entire cell alive and functioning is the ________.

A) axon
B) cell membrane
C) dendrite
D) soma
Question
Which part of the neuron is responsible for maintaining the life of the cell?

A) axon
B) soma
C) dendrite
D) cell membrane
Question
The function of the ________ is to carry information to and from all parts of the body.

A) soma
B) synapse
C) nervous system
D) endorphins
Question
The part of the neuron whose name literally means "branch" is a(n) ________.

A) axon
B) dendrite
C) myelin
D) soma
Question
Dendrite is to axon as:

A) send is to receive.
B) send is to regulate.
C) receive is to send.
D) receive is to release.
Question
The two types of glial cells are called ________ and ________.

A) occipital; lobitical
B) oligodendrocytes; Schwann cells
C) occipital; Schwann
D) oligodendrocytes; lobitical
Question
What are two roles of glial cells?

A) acting as insulation and providing structure to surrounding neurons
B) shaping cells and moving new neurons into place
C) regulating metabolic activity and serving as pain detectors
D) monitoring neural transmission and releasing hormones in the brain
Question
A specialized cell that makes up the nervous system that receives and sends messages within that system is called a ________.

A) glial cell
B) neuron
C) cell body
D) myelin sheath
Question
One purpose of the ________ is to speed up the neural message traveling down the axon.

A) receptor site
B) axon terminal
C) myelin
D) synaptic vesicle
Question
Which of the following is true about myelin?

A) It's made of a fatty substance.
B) It is covered by axons.
C) It inhibits neural communication.
D) It slows down neuronal operations.
Question
Which of the following are tiny sacs in an axon terminal that release chemicals into the synapse?

A) synaptic vesicles
B) synaptic nodes
C) terminal buttons
D) synaptic gaps
Question
A chemical found in the synaptic vesicles which, when released, has an effect on the next cell is called a ________.

A) glial cell
B) neurotransmitter
C) precursor cell
D) synapse
Question
The charge that a neuron at rest maintains is due to the presence of a high number of _________ charged ions inside the neuron's membrane.

A) actively
B) passively
C) negatively
D) positively
Question
During action potential, the electrical charge inside the neuron is ________ the electrical charge outside the neuron.

A) positive compared to
B) larger than
C) negative compared to
D) smaller than
Question
What do we call the state of a neuron when it is not firing a neural impulse?

A) action potential
B) resting potential
C) myelination signal
D) transmission impulse
Question
The term neurotransmitter refers to ________.

A) a chemical found in the synaptic vesicles that is released into the synapse
B) any one of a number of chemical compounds that increase the activity of the endocrine system
C) the chemical substance found in the cell membrane
D) the DNA contained in the nucleus of every neuron
Question
The state during which a neuron contains more negatively charged ions inside the cell than outside the cell and is not firing is referred to as the ________.

A) action potential
B) quiet potential
C) synaptic potential
D) resting potential
Question
When a neuron fires, it fires in a(n) ________ fashion, as there is no such thing as "partial" firing.

A) all-or-none
B) rapid fire
C) accidental patterned
D) quick succession
Question
A nerve is a group of ________ bundled together.

A) axons
B) interneurons
C) dendrites
D) glial cells
Question
The fluid-filled space between the synaptic knob of one cell and the dendrites of the next cell is called the ________.

A) receptor site
B) synapse
C) synaptic knob
D) axon terminal
Question
A group of axons bundled together coated in myelin that travels together through the body is called a ________.

A) synaptic vesicle
B) nerve
C) neurilemma
D) myelinated pathway
Question
The saclike structures found inside the synaptic knob containing chemicals are called ________.

A) axon terminals
B) synapses
C) synaptic vesicles
D) receptor sites
Question
Which structure is like a locked door that only certain neurotransmitter keys can unlock?

A) synapses
B) receptor sites
C) neural chiasms
D) response terminals
Question
When a cell is "at rest," it is in a state called the ________.

A) stopping point
B) obcipitation junction
C) resting potential
D) action potential
Question
The action potential causes neurotransmitters to be released into the ________.

A) myelin sheath
B) axon
C) synapse
D) synaptic vesicle
Question
The term "fire" when referring to neural transmission indicates that a neuron:

A) has become less positive in charge.
B) has received, in its dendrites, appropriate inputs from other neurons.
C) is unable to transmit information to another neuron.
D) has become more negative in charge.
Question
When the electric potential in a cell is in action versus a resting state, this electrical charge reversal is known as the ________.

A) resting potential
B) excitation reaction
C) action potential
D) permeable reaction
Question
________ are holes in the surface of the dendrites or certain cells of the muscles and glands that are shaped to fit only certain neurotransmitters.

A) Neurotransmitters
B) Axons
C) Synaptic vesicles
D) Receptor sites
Question
Agonist is to antagonist as:

A) neuromodulator is to neurotransmitter.
B) reuptake is to receptor.
C) mimic is to block.
D) block is to mimic.
Question
Pain-controlling chemicals in the body are called ________.

A) neural regulators
B) histamines
C) androgens
D) endorphins
Question
Because they have similar chemical structures, morphine and heroin are able to lock into receptor sites for ________.

A) GABA
B) serotonin
C) dopamine
D) endorphins
Question
GABA functions as _________.

A) the major neurotransmitter involved in voluntary movements
B) an inhibitory neurotransmitter in the brain
C) the neurotransmitter responsible for slowing intestinal activity during stress
D) the major excitatory neurotransmitter in the brain
Question
Andy has decided to seek medical help for mood disturbances and appetite problems. Which neurotransmitter is most likely involved in the problems Andy is experiencing?

A) GABA
B) dopamine
C) serotonin
D) acetylcholine
Question
Endorphins are ________.

A) found where neurons meet skeletal muscles
B) less powerful than enkaphalins
C) pain-controlling chemicals
D) radically different in function from neurotransmitters
Question
Which of the following neurotransmitters functions as a major inhibitory neurotransmitter in the brain?

A) serotonin
B) GABA
C) acetylcholine
D) norepinephrine
Question
________ plays a critical role as a neurotransmitter that stimulates skeletal muscles to contract.

A) Acetylcholine
B) GABA
C) Dopamine
D) Endorphin
Question
Reuptake is ________.

A) a chemical that is released into the synaptic gap
B) a protein molecule on the dendrite or cell body of a neuron that will interact only with specific neurotransmitters
C) a process by which neurotransmitters are sucked back into the synaptic vesicles
D) a chemical that plays a role in learning and attention
Question
Sara has been experiencing a serious memory problem. An interdisciplinary team has ruled out a range of causes and believes that a neurotransmitter is involved. Which neurotransmitter is most likely involved in this problem?

A) GABA
B) dopamine
C) serotonin
D) acetylcholine
Question
Isabella is putting mustard on her hot dog. She realizes she has put too much and sucks up some of it back into the squeeze bottle. This process is similar to:

A) the action potential.
B) receptor site bindings.
C) binding specificity.
D) reuptake.
Question
How is acetylcholine removed from the synapse?

A) It is broken down by an enzyme.
B) It is taken back up in the synapse.
C) It dissipates in the surrounding body fluids.
D) Acetylcholine is one of the few neurotransmitters that is continually present in the synapse.
Question
The central nervous system consists of ______.

A) the parasympathetic and sympathetic divisions
B) the brain and spinal cord
C) muscles and glands
D) sense organs and sensory neurons
Question
The brain and spinal cord are two components of the ______.

A) central nervous system
B) somatic nervous system
C) peripheral nervous system
D) autonomic nervous system
Question
Curare, a poison, works by ________.

A) blocking receptor sites and acting as an antagonist for acetylcholine
B) stimulating the release of excessive amounts of acetylcholine
C) stimulating the release of neurotransmitters
D) inhibiting the production of inhibitory neurotransmitters
Question
Which neurotransmitter is associated with sleep, mood, and appetite?

A) GABA
B) serotonin
C) dopamine
D) acetylcholine
Question
After being bitten by a black widow spider, Jean starts to convulse. This is a result of ________.

A) a lack of GABA being released into her bloodstream
B) a resurgence of neurotransmitters overstimulating her brain stem
C) a surge of chemicals blocking the transmission of fluids to the spinal cord
D) a flood of acetylcholine releasing into the body's muscle system
Question
The two main divisions of the nervous system are the ________ and ________.

A) brain; spinal cord
B) autonomic; somatic nervous systems
C) peripheral nervous system; central nervous system
D) glands; muscles
Question
Which part of the nervous system takes the information received from the senses, makes sense out of it, makes decisions, and sends commands out to the muscles and the rest of the body?

A) spinal cord
B) brain
C) reflexes
D) interneurons
Question
_________ synapses make it more likely that a neuron will send its message to other neurons, whereas ________ synapses make it less likely that a neuron will send its message.

A) Excitatory; inhibitory
B) Inhibitory; excitatory
C) Augmentation; depletion
D) Depletion; augmentation
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Deck 2: The Biological Perspective
1
The part of the autonomic nervous system that is responsible for reacting to stressful events and bodily arousal is called the ______________ nervous system.

A) central
B) somatic
C) sympathetic
D) parasympathetic
sympathetic
2
Every deliberate action you make, such as pedaling a bike, walking, scratching, or smelling a flower, involves neurons in the ______ nervous system.

A) sympathetic
B) somatic
C) parasympathetic
D) autonomic
somatic
3
Which of the following regions contains the primary visual cortex?

A) frontal lobe
B) parietal lobe
C) temporal lobe
D) occipital lobe
occipital lobe
4
Which endocrine gland controls all of the other endocrine glands?

A) thyroid
B) adrenal
C) thymus
D) pituitary
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
5
Which part of the nervous system takes the information received from the senses, makes sense out of it, makes decisions, and sends commands out to the muscles and the rest of the body?

A) spinal cord
B) brain
C) reflexes
D) interneurons
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
6
Which of the following are tiny sacs in a synaptic knob that release chemicals into the synapse?

A) synaptic vesicles
B) synaptic nodes
C) terminal buttons
D) synaptic gaps
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
7
Which of the following are responsible for acting as a facilitator of communication between neurons?

A) motor neurons
B) interneurons
C) sensory neurons
D) reflexes
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
8
Which of the following is the section of the brain located at the rear and bottom of each cerebral hemisphere and contains the visual centers of the brain?

A) occipital lobe
B) parietal lobe
C) temporal lobe
D) frontal lobe
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
9
Which of the following is the upper part of the brain consisting of two cerebral hemispheres and the structures that connect them?

A) occipital lobe
B) cerebrum
C) corpus callosum
D) cerebellum
Chapter 2 - Quick Quiz 2
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Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
10
Signals from the neurons of which sense are NOT sent to the cortex by the thalamus?

A) hearing
B) smell
C) taste
D) vision
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
11
The point at which the nerves from the left side of the body cross over into the right side of the brain, and vice versa, is the ______.

A) reticular activating system
B) pons
C) medulla
D) cerebellum
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
12
The two main divisions of the nervous system are the ________ and ________.

A) brain; spinal cord
B) autonomic; somatic nervous systems
C) peripheral nervous system; central nervous system
D) glands; muscles
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
13
Which of the following is a function of the right hemisphere?

A) perception, expression of emotion, and recognition of patterns
B) sense of time and rhythm
C) speech, handwriting, and calculation
D) language processing in most individuals
Chapter 2 - Quick Quiz 1
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
14
What part of the brain acts as a relay station for incoming sensory information?

A) hypothalamus
B) thalamus
C) cerebellum
D) pituitary gland
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
15
A brain-imaging method using radio waves and magnetic fields of the body to produce detailed images of the brain is called ______________.

A) magnetic resonance imaging (MRI)
B) electroencephalography (EEG)
C) positron-emission tomography (PET)
D) computerized axial tomography (CT)
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
16
Which part of the neuron is responsible for maintaining the life of the cell?

A) axon
B) soma
C) dendrite
D) cell membrane
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
17
Hormones are___________.

A) the female gonads
B) chemicals released into the bloodstream by the endocrine glands
C) chemicals found in the synaptic vesicles, which when released have an effect on the next cell
D) the male gonads
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
18
The branchlike structures that receive messages from other neurons are called ______.

A) axons
B) nerve bundles
C) dendrites
D) synapses
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
19
The area of the frontal lobe that is devoted to the production of fluent speech is ______ area.

A) Broca's
B) Gall's
C) Wernicke's
D) Korsakoff's
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
20
Which of the following neurotransmitters functions as a common inhibitory neurotransmitter in the brain?

A) serotonin
B) norepinephrine
C) acetylcholine
D) GABA
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
21
A cell in the human nervous system whose primary function is to provide insulation and structure for neurons on which they may develop and work is called a(n) ________.

A) epidermal cell
B) adipose cell
C) glial cell
D) myelin sheath
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
22
The swellings or knobs at the end of the axon are called ________.

A) presynaptic terminals
B) synaptic vesicles
C) synapses
D) receptor sites
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
23
What is a function of myelin?

A) to serve as a structure for neurons
B) to monitor neural activity
C) to speed up the neural impulse
D) to produce neurotransmitters
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
24
What is the term used to describe the bulbs located at the end of the axon?

A) axon terminals
B) synaptic vesicles
C) synapses
D) receptor sites
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
25
Your teacher asks you to describe the sequence of parts of a neuron that the impulse travels during neural conduction. Which of the following sequences will you offer?

A) dendrites, axon, soma, terminal buttons
B) terminal buttons, axon, soma, dendrites
C) axon, soma, dendrites, terminal buttons
D) dendrites, soma, axon, terminal buttons
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
26
The nervous system is defined as________.

A) a complex network of cells that carries information to and from all parts of the body
B) a specialized cell that makes up the brain and nervous system
C) all nerves and neurons that are not contained in the brain and spinal cord but that run throughout the body itself
D) a gland located in the brain that secretes human growth hormone
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
27
The branchlike structures that receive messages from other neurons are called ________.

A) axons
B) nerve bundles
C) dendrites
D) synapses
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
28
The function of the neuron's axon is to ________.

A) carry messages to other cells
B) regulate the neuron's life processes
C) receive messages from neighboring neurons
D) insulate against leakage of electrical impulses
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
29
________ receive messages from other neurons and ________ send messages to other neurons.

A) Axons; dendrites
B) Axon; soma
C) Soma; glial cells
D) Dendrites; axons
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
30
The branch of life sciences which involves the structure and function of the brain and nervous system, including neurons, nerves, and nervous tissue is called ________.

A) neuroscience
B) bioscience
C) brain scientology
D) neurostemology
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
31
Which of the following best represents the order in which a neuron receives and transmits information?

A) dendrites, cell body, axon, axon terminals
B) axon terminals, dendrites, cell body, axon
C) cell body, dendrites, axon terminals, axon
D) axon, cell body, dendrites, axon terminals
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
32
Which part of a neuron is attached to the soma and carries messages out to other cells?

A) soma
B) axon
C) dendrite
D) cell membrane
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
33
The part of a neuron that contains the nucleus and keeps the entire cell alive and functioning is the ________.

A) axon
B) cell membrane
C) dendrite
D) soma
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
34
Which part of the neuron is responsible for maintaining the life of the cell?

A) axon
B) soma
C) dendrite
D) cell membrane
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
35
The function of the ________ is to carry information to and from all parts of the body.

A) soma
B) synapse
C) nervous system
D) endorphins
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Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
36
The part of the neuron whose name literally means "branch" is a(n) ________.

A) axon
B) dendrite
C) myelin
D) soma
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Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
37
Dendrite is to axon as:

A) send is to receive.
B) send is to regulate.
C) receive is to send.
D) receive is to release.
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
38
The two types of glial cells are called ________ and ________.

A) occipital; lobitical
B) oligodendrocytes; Schwann cells
C) occipital; Schwann
D) oligodendrocytes; lobitical
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
39
What are two roles of glial cells?

A) acting as insulation and providing structure to surrounding neurons
B) shaping cells and moving new neurons into place
C) regulating metabolic activity and serving as pain detectors
D) monitoring neural transmission and releasing hormones in the brain
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
40
A specialized cell that makes up the nervous system that receives and sends messages within that system is called a ________.

A) glial cell
B) neuron
C) cell body
D) myelin sheath
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
41
One purpose of the ________ is to speed up the neural message traveling down the axon.

A) receptor site
B) axon terminal
C) myelin
D) synaptic vesicle
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
42
Which of the following is true about myelin?

A) It's made of a fatty substance.
B) It is covered by axons.
C) It inhibits neural communication.
D) It slows down neuronal operations.
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
43
Which of the following are tiny sacs in an axon terminal that release chemicals into the synapse?

A) synaptic vesicles
B) synaptic nodes
C) terminal buttons
D) synaptic gaps
Unlock Deck
Unlock for access to all 508 flashcards in this deck.
Unlock Deck
k this deck
44
A chemical found in the synaptic vesicles which, when released, has an effect on the next cell is called a ________.

A) glial cell
B) neurotransmitter
C) precursor cell
D) synapse
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45
The charge that a neuron at rest maintains is due to the presence of a high number of _________ charged ions inside the neuron's membrane.

A) actively
B) passively
C) negatively
D) positively
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46
During action potential, the electrical charge inside the neuron is ________ the electrical charge outside the neuron.

A) positive compared to
B) larger than
C) negative compared to
D) smaller than
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47
What do we call the state of a neuron when it is not firing a neural impulse?

A) action potential
B) resting potential
C) myelination signal
D) transmission impulse
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48
The term neurotransmitter refers to ________.

A) a chemical found in the synaptic vesicles that is released into the synapse
B) any one of a number of chemical compounds that increase the activity of the endocrine system
C) the chemical substance found in the cell membrane
D) the DNA contained in the nucleus of every neuron
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49
The state during which a neuron contains more negatively charged ions inside the cell than outside the cell and is not firing is referred to as the ________.

A) action potential
B) quiet potential
C) synaptic potential
D) resting potential
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50
When a neuron fires, it fires in a(n) ________ fashion, as there is no such thing as "partial" firing.

A) all-or-none
B) rapid fire
C) accidental patterned
D) quick succession
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51
A nerve is a group of ________ bundled together.

A) axons
B) interneurons
C) dendrites
D) glial cells
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52
The fluid-filled space between the synaptic knob of one cell and the dendrites of the next cell is called the ________.

A) receptor site
B) synapse
C) synaptic knob
D) axon terminal
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53
A group of axons bundled together coated in myelin that travels together through the body is called a ________.

A) synaptic vesicle
B) nerve
C) neurilemma
D) myelinated pathway
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54
The saclike structures found inside the synaptic knob containing chemicals are called ________.

A) axon terminals
B) synapses
C) synaptic vesicles
D) receptor sites
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55
Which structure is like a locked door that only certain neurotransmitter keys can unlock?

A) synapses
B) receptor sites
C) neural chiasms
D) response terminals
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56
When a cell is "at rest," it is in a state called the ________.

A) stopping point
B) obcipitation junction
C) resting potential
D) action potential
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57
The action potential causes neurotransmitters to be released into the ________.

A) myelin sheath
B) axon
C) synapse
D) synaptic vesicle
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58
The term "fire" when referring to neural transmission indicates that a neuron:

A) has become less positive in charge.
B) has received, in its dendrites, appropriate inputs from other neurons.
C) is unable to transmit information to another neuron.
D) has become more negative in charge.
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59
When the electric potential in a cell is in action versus a resting state, this electrical charge reversal is known as the ________.

A) resting potential
B) excitation reaction
C) action potential
D) permeable reaction
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60
________ are holes in the surface of the dendrites or certain cells of the muscles and glands that are shaped to fit only certain neurotransmitters.

A) Neurotransmitters
B) Axons
C) Synaptic vesicles
D) Receptor sites
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61
Agonist is to antagonist as:

A) neuromodulator is to neurotransmitter.
B) reuptake is to receptor.
C) mimic is to block.
D) block is to mimic.
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62
Pain-controlling chemicals in the body are called ________.

A) neural regulators
B) histamines
C) androgens
D) endorphins
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63
Because they have similar chemical structures, morphine and heroin are able to lock into receptor sites for ________.

A) GABA
B) serotonin
C) dopamine
D) endorphins
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64
GABA functions as _________.

A) the major neurotransmitter involved in voluntary movements
B) an inhibitory neurotransmitter in the brain
C) the neurotransmitter responsible for slowing intestinal activity during stress
D) the major excitatory neurotransmitter in the brain
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65
Andy has decided to seek medical help for mood disturbances and appetite problems. Which neurotransmitter is most likely involved in the problems Andy is experiencing?

A) GABA
B) dopamine
C) serotonin
D) acetylcholine
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66
Endorphins are ________.

A) found where neurons meet skeletal muscles
B) less powerful than enkaphalins
C) pain-controlling chemicals
D) radically different in function from neurotransmitters
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67
Which of the following neurotransmitters functions as a major inhibitory neurotransmitter in the brain?

A) serotonin
B) GABA
C) acetylcholine
D) norepinephrine
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68
________ plays a critical role as a neurotransmitter that stimulates skeletal muscles to contract.

A) Acetylcholine
B) GABA
C) Dopamine
D) Endorphin
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69
Reuptake is ________.

A) a chemical that is released into the synaptic gap
B) a protein molecule on the dendrite or cell body of a neuron that will interact only with specific neurotransmitters
C) a process by which neurotransmitters are sucked back into the synaptic vesicles
D) a chemical that plays a role in learning and attention
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70
Sara has been experiencing a serious memory problem. An interdisciplinary team has ruled out a range of causes and believes that a neurotransmitter is involved. Which neurotransmitter is most likely involved in this problem?

A) GABA
B) dopamine
C) serotonin
D) acetylcholine
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71
Isabella is putting mustard on her hot dog. She realizes she has put too much and sucks up some of it back into the squeeze bottle. This process is similar to:

A) the action potential.
B) receptor site bindings.
C) binding specificity.
D) reuptake.
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72
How is acetylcholine removed from the synapse?

A) It is broken down by an enzyme.
B) It is taken back up in the synapse.
C) It dissipates in the surrounding body fluids.
D) Acetylcholine is one of the few neurotransmitters that is continually present in the synapse.
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73
The central nervous system consists of ______.

A) the parasympathetic and sympathetic divisions
B) the brain and spinal cord
C) muscles and glands
D) sense organs and sensory neurons
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74
The brain and spinal cord are two components of the ______.

A) central nervous system
B) somatic nervous system
C) peripheral nervous system
D) autonomic nervous system
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75
Curare, a poison, works by ________.

A) blocking receptor sites and acting as an antagonist for acetylcholine
B) stimulating the release of excessive amounts of acetylcholine
C) stimulating the release of neurotransmitters
D) inhibiting the production of inhibitory neurotransmitters
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76
Which neurotransmitter is associated with sleep, mood, and appetite?

A) GABA
B) serotonin
C) dopamine
D) acetylcholine
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77
After being bitten by a black widow spider, Jean starts to convulse. This is a result of ________.

A) a lack of GABA being released into her bloodstream
B) a resurgence of neurotransmitters overstimulating her brain stem
C) a surge of chemicals blocking the transmission of fluids to the spinal cord
D) a flood of acetylcholine releasing into the body's muscle system
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78
The two main divisions of the nervous system are the ________ and ________.

A) brain; spinal cord
B) autonomic; somatic nervous systems
C) peripheral nervous system; central nervous system
D) glands; muscles
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79
Which part of the nervous system takes the information received from the senses, makes sense out of it, makes decisions, and sends commands out to the muscles and the rest of the body?

A) spinal cord
B) brain
C) reflexes
D) interneurons
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80
_________ synapses make it more likely that a neuron will send its message to other neurons, whereas ________ synapses make it less likely that a neuron will send its message.

A) Excitatory; inhibitory
B) Inhibitory; excitatory
C) Augmentation; depletion
D) Depletion; augmentation
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Unlock Deck
Unlock for access to all 508 flashcards in this deck.