Question 1

Action potentials ____.

Accepted Answer

A) move backwards 
B) ​are  examples of negative feedback 
C) are generated and completed in a matter of milliseconds 
D) are only generated regardless of whether or not the threshold potential is reached 
E) are all the same size 
A) move backwards 
B) ​are  examples of negative feedback 
C) are generated and completed in a matter of milliseconds 
D) are only generated regardless of whether or not the threshold potential is reached 
E) are all the same size

Question 2

Since newborns have an underdeveloped ____, it is important to monitor their diet and exposure to environmental chemicals.

Accepted Answer

A) taste buds 
B) basilar membrane 
C) somatosensory cortex 
D) statocysts 
E) blood-brain barrier 
A) taste buds 
B) basilar membrane 
C) somatosensory cortex 
D) statocysts 
E) blood-brain barrier

Question 3

A reflex ____.

Accepted Answer

A) only involves the use of sensory neurons 
B) is an automatic response to a stimulus that requires considerable thought 
C) is an automatic response to a stimulus that doesn't require thought 
D) is an involuntary response that requires only one neuron 
E) does not require the brain 
A) only involves the use of sensory neurons 
B) is an automatic response to a stimulus that requires considerable thought 
C) is an automatic response to a stimulus that doesn't require thought 
D) is an involuntary response that requires only one neuron 
E) does not require the brain

Question 4

Match between columns
                        Premises: cytoplasmic extension of a neuron which receives signals from another neuron

Accepted Answer

The Answer of motor neuron and neurotransmitter and nerve and is...

Question 5

Which animal is bilaterally symmetrical and has a pair of ganglia instead of a true brain?

Accepted Answer

A) jellyfish 
B) planarian 
C) earthworm 
D) grasshopper 
E) centipede 
A) jellyfish 
B) planarian 
C) earthworm 
D) grasshopper 
E) centipede

Question 6

The human eye's protective mucus membrane is the ____.

Accepted Answer

A) retina 
B) sclera 
C) cornea 
D) conjunctiva 
E) aqueous humor 
A) retina 
B) sclera 
C) cornea 
D) conjunctiva 
E) aqueous humor

Question 7

An action potential in a neuron begins when ____.

Accepted Answer

A) a threshold potential is reached at the trigger zone 
B) the resting potential is established 
C) gated sodium channels close 
D) gated potassium channels close 
E) neurotransmitters are received by dendrites 
A) a threshold potential is reached at the trigger zone 
B) the resting potential is established 
C) gated sodium channels close 
D) gated potassium channels close 
E) neurotransmitters are received by dendrites

Question 8

Match between columns
                        Premises: membranes that enclose and protect the brain and spinal cord

Accepted Answer

The Answer of sensory neuron and neurotransmitter and motor neuron is...

Question 9

Match between columns
                        Premises: the body's natural painkillers

Accepted Answer

The Answer of acetylcholine and adenosine and GABA and endorphins is...

Question 10

Cerebrospinal fluid ____.

Accepted Answer

A) bathes the peripheral nervous system 
B) is continuous with the lymph system 
C) is formed from water and solutes that have left capillaries in the brain 
D) is the solvent that comprises the cytosol of neurons 
E) is stored in the ventricles 
A) bathes the peripheral nervous system 
B) is continuous with the lymph system 
C) is formed from water and solutes that have left capillaries in the brain 
D) is the solvent that comprises the cytosol of neurons 
E) is stored in the ventricles

Question 11

When you feel threatened, the neurotransmitter norepinephrine is released from the adrenal gland in response to stimuli by ____ neurons.

Accepted Answer

A) somatic 
B) sensory 
C) sympathetic 
D) motor 
E) parasympathetic 
A) somatic 
B) sensory 
C) sympathetic 
D) motor 
E) parasympathetic

Question 12

An example of an animal with paired nerve cords that connect to a simple brain is a   ____.

Accepted Answer

A) starfish 
B) jellyfish 
C) grasshopper 
D) sea urchin 
E) planarian 
A) starfish 
B) jellyfish 
C) grasshopper 
D) sea urchin 
E) planarian

Question 13

When a neuron is at rest, ____.

Accepted Answer

A) the sodium and potassium gated channels are closed 
B) the sodium gated channels are closed and the potassium gated channels are open 
C) the sodium gated channels are open and the potassium gated channels are closed 
D) the sodium and potassium gated channels are open 
E) the sodium and potassium gated channels may be open or closed depending upon their location in the nervous system 
A) the sodium and potassium gated channels are closed 
B) the sodium gated channels are closed and the potassium gated channels are open 
C) the sodium gated channels are open and the potassium gated channels are closed 
D) the sodium and potassium gated channels are open 
E) the sodium and potassium gated channels may be open or closed depending upon their location in the nervous system

Question 14

THC, the active ingredient in marijuana, mimics the function of the neurotransmitter ____, resulting in a variety of effects including ____.

Accepted Answer

A) dopamine; increased pain perception 
B) norepinephrine; hallucinogens 
C) GABA; nervousness 
D) serotonin; loss of appetite 
E) anandamide; memory loss 
A) dopamine; increased pain perception 
B) norepinephrine; hallucinogens 
C) GABA; nervousness 
D) serotonin; loss of appetite 
E) anandamide; memory loss

Question 15

Identify the correct pathway for signal flow between neurons in the vertebrate nervous system.

Accepted Answer

A) stimulus, sensory neurons, interneurons, motor neurons, effectors 
B) effectors, sensory neurons, interneurons, motor neurons, stimulus 
C) sensory neurons, stimulus, interneurons, motor neurons, effectors 
D) motor neurons, interneurons, stimulus, sensory neurons, effectors 
E) motor neurons, sensory neurons, stimulus, interneurons, , effectors 
A) stimulus, sensory neurons, interneurons, motor neurons, effectors 
B) effectors, sensory neurons, interneurons, motor neurons, stimulus 
C) sensory neurons, stimulus, interneurons, motor neurons, effectors 
D) motor neurons, interneurons, stimulus, sensory neurons, effectors 
E) motor neurons, sensory neurons, stimulus, interneurons, , effectors

Question 16

Match between columns
                        Premises: defining feature of chordate embryos

Accepted Answer

The Answer of dorsal nerve cord and nerve net and is...

Question 17

Alzheimer's disease and Parkinson's disease are both neurological diseases that result from ____.

Accepted Answer

A) lack of acetylcholine production 
B) abnormal levels of specific neurotransmitters 
C) failure to remove neurotransmitters from the synaptic cleft 
D) too much dopamine production 
E) a failed reuptake of specific neurotransmitters 
A) lack of acetylcholine production 
B) abnormal levels of specific neurotransmitters 
C) failure to remove neurotransmitters from the synaptic cleft 
D) too much dopamine production 
E) a failed reuptake of specific neurotransmitters

Question 18

Referring to the above diagram of the brain, B identifies which region?

Accepted Answer

A) hypothalamus 
B) thalamus 
C) cerebrum 
D) corpus callosum 
E) cerebellum 
A) hypothalamus 
B) thalamus 
C) cerebrum 
D) corpus callosum 
E) cerebellum

Question 19

People who work in department stores where music is played constantly in overhead speakers claim they don't hear the music. This is an example of ____.

Accepted Answer

A) sensory deprivation 
B) sensory adaptation 
C) behavioral modification 
D) a coordinated response 
E) a conditioned response 
A) sensory deprivation 
B) sensory adaptation 
C) behavioral modification 
D) a coordinated response 
E) a conditioned response

Question 20

Which represents the charged environment inside a resting neuron and the interstitial fluid that surrounds it?

Accepted Answer

A) negatively charged proteins inside; more sodium ions inside than outside; more potassium ions outside than inside 
B) positively charged proteins inside; more sodium ions inside than outside; more potassium ions outside than inside 
C) negatively charged proteins inside; more sodium ions outside than inside; more potassium ions inside than outside 
D) positively charged proteins inside; more sodium ions outside than inside; more potassium ions inside than outside 
E) negatively charged proteins inside; equal amounts of sodium and potassium ions inside and outside 
A) negatively charged proteins inside; more sodium ions inside than outside; more potassium ions outside than inside 
B) positively charged proteins inside; more sodium ions inside than outside; more potassium ions outside than inside 
C) negatively charged proteins inside; more sodium ions outside than inside; more potassium ions inside than outside 
D) positively charged proteins inside; more sodium ions outside than inside; more potassium ions inside than outside 
E) negatively charged proteins inside; equal amounts of sodium and potassium ions inside and outside

Exam 24: Neural Control and the Senses

Action potentials ____.

Since newborns have an underdeveloped ____, it is important to monitor their diet and exposure to environmental chemicals.

A reflex ____.

Which animal is bilaterally symmetrical and has a pair of ganglia instead of a true brain?

The human eye's protective mucus membrane is the ____.

An action potential in a neuron begins when ____.

Cerebrospinal fluid ____.

When you feel threatened, the neurotransmitter norepinephrine is released from the adrenal gland in response to stimuli by ____ neurons.

An example of an animal with paired nerve cords that connect to a simple brain is a ____.

When a neuron is at rest, ____.

THC, the active ingredient in marijuana, mimics the function of the neurotransmitter ____, resulting in a variety of effects including ____.

Identify the correct pathway for signal flow between neurons in the vertebrate nervous system.

Alzheimer's disease and Parkinson's disease are both neurological diseases that result from ____.

Referring to the above diagram of the brain, B identifies which region?

People who work in department stores where music is played constantly in overhead speakers claim they don't hear the music. This is an example of ____.

Which represents the charged environment inside a resting neuron and the interstitial fluid that surrounds it?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters

THC, the active ingredient in marijuana, mimics the function of the neurotransmitter , resulting in a variety of effects including .