Deck 27: Coordination by Neural Signaling

Question 1

Which function of the nervous system is restricted to only the CNS?

A)Motor output
B)Sensory input
C)Integration of neural information
D)None of the nervous system functions are restricted to the CNS
E)All of the nervous system functions are restricted to the CNS

Answer 1

C
Explanation: Sensory input and motor output are both associated with the PNS and CNS.Integration of the neural information is restricted to the CNS.

Question 2

Figure:
This figure shows the parts of a motor neuron.What does "b" represent?

A)Axon terminal
B)Cell body
C)Node of Ranvier
D)Schwann cell
E)Dendrite

Answer 2

E
Explanation: "b" represents a dendrite.See Figure 27.1B.

Question 3

Figure:
This figure shows the parts of a motor neuron.What does "d" represent?

A)Cell body
B)Dendrite
C)Schwann cell
D)Axon terminal
E)Node of Ranvier

Answer 3

D
Explanation: "d" represents an axon terminal.See Figure 27.1B.

Question 4

A biologist is studying the type of neuron which takes nervous impulses from sensory receptors in the skin to the central nervous system for integration.Based on this information you would conclude that he or she is studying which of the following?

A)An interneuron
B)An somatic sensory fiber
C)A ganglion neuron
D)A visceral sensory fiber
E)A somatic motor fiber

Question 5

If you were studying the two parts of the central nervous system in vertebrates you would be studying:

A)A brain and nerve net
B)A ganglion and spinal cord
C)A ganglion and nerve net
D)A brain and spinal cord
E)A brain and ladderlike nervous system

Question 6

If after an accident a person loses their gag reflex,one can assume that they have suffered some damage to which part of the brain?

A)Spinal cord
B)Frontal lobe
C)Thalamus
D)Medulla oblongata
E)Cerebellum

Question 7

Which structure is not associated with saltatory conduction?

A)Dendrites
B)Action potential
C)Node of Ranvier
D)Myelin sheath
E)Axons

Question 8

Figure:
This figure shows the parts of a motor neuron.What does "e" represent?

A)Axon terminal
B)Cell body
C)Node of Ranvier
D)Schwann cell
E)Dendrite

Question 9

Which lobe of the brain should a physician assume has been damaged if the patient is having trouble hearing?

A)Frontal
B)Temporal
C)Parietal
D)Occipital
E)Diencephalon

Question 10

In which type of neuron do multiple axons attach directly to the cell body?

A)Motor neurons
B)Sensory neurons
C)Interneurons
D)Both motor and interneurons
E)Both sensory and motor neurons

Question 11

If a person suffers an injury that damages his autonomic motor fibers,which body part would most likely not function correctly?

A)The muscles in his legs would not function properly
B)The muscles in his arms would not function properly
C)The smooth muscle of the digestive system would not function properly
D)The lungs would not function properly
E)The skin would not detect stimuli

Question 12

Dendrites:

A)Carry impulses away from a cell body
B)Are always myelinated
C)Are found only in the central nervous system
D)Are solely responsible for nervous conduction
E)Carry impulses toward a cell body

Question 13

The type of neuron which carries impulses away from the central nervous system to a muscle or a gland is referred to as:

A)A visceral sensory fiber
B)An interneuron
C)An autonomic motor fiber
D)A somatic motor fiber
E)A somatic sensory fiber

Question 14

All vertebrates have a well defined head.

Question 15

Figure:
This figure shows the parts of a motor neuron.What does "c" represent?

A)Axon terminal
B)Cell body
C)Node of Ranvier
D)Schwann cell
E)Dendrite

Question 16

If you were studying the cells which provide support and nourishment to neurons you would be studying:

A)Neuroglia cells
B)Schwann cells
C)Interneurons
D)Myelin cells
E)Ranvier cells

Question 17

If you were writing a paper on the part of the nervous system which picks up visceral and somatic information and which is attached to the skeletal muscle and glands,you would be writing on:

A)The central nervous system
B)The peripheral nervous system
C)The autonomic nervous system
D)The sympathetic nervous system
E)The parasympathetic nervous system

Question 18

When a neuron is not conducting an action potential,the resting potential is about _______.

A)+70 mV
B)+20 mV
C)-70 mV
D)-35 mV
E)-10 mV

Question 19

A pharmaceutical company is developing a drug that will block action potentials in order to help control seizures of critically ill patients.Which ion should the pharmaceutical company work on blocking in order for the drug to be effective?

A)Potassium
B)Hydrogen
C)Chlorine
D)Carbon
E)Sodium

Question 20

Which of the following structures are associated with the CNS?

A)Brain and visceral fibers
B)Spinal cord and visceral fibers
C)Spinal cord and somatic fibers
D)Brain and spinal cord
E)Autonomic fibers and brain

Question 21

Figure:
This figure shows the anatomy of the human brain.What does "b" represent?

A)The thalamus
B)The cerebellum
C)The corpus callosum
D)The cerebrum
E)The pons

Question 22

A biologist is studying the molecules that assist in the transmission of information between two neurons.Based on this information you would conclude that he or she is studying:

A)Action potentials
B)Depolarization
C)Saltatory conduction
D)Integration
E)Neurotransmitters

Question 23

Figure:
This figure shows the anatomy of the human brain.What does "e" represent?

A)The thalamus
B)The cerebellum
C)The corpus callosum
D)The cerebrum
E)The pons

Question 24

Figure:
This figure shows the anatomy of the human brain.What does "a" represent?

A)The thalamus
B)The cerebellum
C)The corpus callosum
D)The cerebrum
E)The pons

Question 25

Figure:
This figure shows the anatomy of the human brain.What part belongs to the diencephalon?

A)Cerebellum
B)Cerebrum
C)Thalamus
D)Corpus callosum
E)Pons

Question 26

Which of the following drug does not function similar to the endorphins?

A)Heroin
B)Codeine
C)Morphine
D)Methamphetamine
E)None of these function similar to the endorphins

Question 27

Which of the following drugs is a powerful stimulant in the central nervous system which interferes with the re-uptake of dopamine at the synapse?

A)Heroin
B)Caffeine
C)Alcohol
D)Marijuana
E)Nicotine

Question 28

The outer portion of the spinal cord which acts as a superhighway by continuously passing information between the brain and the rest of the body is referred to as:

A)The corpus callosum
B)The thalamus
C)Gray matter
D)The meninges
E)White matter

Question 29

If you were studying the neurotransmitter which is generally involved in stimulating smooth muscle,and is also important in dreaming,you would be studying:

A)Norepinephrine
B)Serotonin
C)Dopamine
D)Gamma aminobutyric acid
E)Acetylcholine

Question 30

The brain and spinal cord are wrapped in protective membranes known as:

A)The meninges
B)The corpus callosum
C)The cerebrospinal membranes
D)The ventricles
E)The hippocampus

Question 31

Neurotransmitters only cause stimulation in the nervous system.

Question 32

Which statement is not true about the development of an action potential?

A)There is a rapid change in polarity from about -70mV to about +40mV
B)It can be produced by an electric shock or sudden pH change
C)The action potential ends when the polarity across the membrane reaches +40 mV
D)Depolarization occurs when sodium gates open and allow sodium ions to enter the cell
E)Potassium gates open after the sodium gates and allow potassium ions to leave the cell

Question 33

Molecules that block the release of a neurotransmitter or modify a normal response to a neurotransmitter,such as caffeine,are referred to as:

A)Refractory molecules
B)Depolarization molecules
C)Neuromodulators
D)Integration molecules
E)Saltatory molecules

Question 34

The summing up of excitatory and inhibitory signals is referred to as:

A)Refraction
B)Neuromodulation
C)Repolarization
D)Integration
E)Depolarization

Question 35

When the action potential "jumps" from node to node,thus increasing the speed of the nerve impulses,it is referred to as:

A)Refractory conduction
B)Depolarization conduction
C)Synapse conduction
D)Saltatory conduction
E)Repolarization conduction

Question 36

If you were studying a rapid change in polarity across the axonal membrane as the nerve impulses occur,you would be studying:

A)An action potential
B)An autonomic potential
C)A resting potential
D)A somatic potential
E)A threshold potential

Question 37

Which of the following drug blocks the removal of serotonin from the synapse decreasing the chances of depression?

A)Valium
B)Prozac
C)Cocaine
D)Morphine
E)Ecstasy

Question 38

When an axon is not conducting a nerve impulse and there is more sodium outside the axon and more potassium inside the axon it is referred to as:

A)An action potential
B)An autonomic potential
C)A resting potential
D)A somatic potential
E)A threshold potential

Question 39

The small gap between neurons is called the:

A)Axon cleft
B)Synaptic cleft
C)Dendrite cleft
D)Neurotransmitter cleft
E)Myelin cleft

Question 40

What are the potential consequences of a neuron receiving both inhibitory and excitatory signals at the same time?

A)The axon will overshoot the threshold and fire an impulse
B)The dendrite will overshoot the threshold and fire an impulse
C)The axon will not reach it's threshold and be able to fire an impulse
D)ACh will be broken down to dopamine
E)AChE will breakdown into ACh

Question 41

Figure:
This figure shows the anatomy of the human brain.Which part is represented by "c"?

A)Pons
B)Cerebellum
C)Corpus callosum
D)Thalamus
E)Cerebrum

Question 42

The part of the human brain which is responsible for controlling homeostasis is:

A)The cerebrum
B)The thalamus
C)The pons
D)The pineal gland
E)The hypothalamus

Question 43

An involuntary response to stimuli is referred to as a reflex.

Question 44

A biologist is studying the division of the autonomic nervous system which is important during emergencies and is associated with the fight of flight response.Based on this information you would conclude that he or she is studying which of the following?

A)The sympathetic division
B)The integration division
C)The parasympathetic division
D)The somatic division
E)The primary motor division

Question 45

Which part of the brain contains the centers for the heartbeat and respiration?

A)The medulla oblongata
B)The hypothalamus
C)The cerebellum
D)The cerebrum
E)The pons

Question 46

The part of the brain which determines when a situation calls for fear would be:

A)The hypothalamus
B)The medulla oblongata
C)The amygdala
D)The thalamus
E)The pons

Question 47

If you were a biologist studying the part of the brain which is involved in storing and retrieving memories you would be studying which of the following?

A)The thalamus
B)The hypothalamus
C)The cerebellum
D)The hippocampus
E)The pons

Question 48

Sara woke up Sunday morning feeling groggy and not being able to remember much of what happened the night before.The last thing she could recall was being handed a drink from a guy she had just met at the party.What drug was she most likely given with her drink?

A)Rohypnol
B)Cocaine
C)Heroin
D)Methamphetamine
E)Acetylcholine

Question 49

Spinal nerves are attached directly to the brain.

Question 50

John has procrastinated studying for his exams and is not in crunch mode.He has decided to try and stay up all night in order to study for the Chemistry test.Which of the following drugs would John be able to legally take that would help him stay awake while studying?

A)Methamphetamine
B)Alcohol
C)Cannabis
D)Cocaine
E)Nicotine

Question 51

The part of the nervous system which serves the skin,joints,and skeletal muscle is referred to as:

A)The parasympathetic system
B)The sympathetic system
C)The integration system
D)The somatic system
E)The limbic system

Question 52

The autonomic system of the PNS functions in regulating the activity of glands and smooth and cardiac muscles.

Question 53

Both the parasympathetic and sympathetic division are responsible for innervating the internal organs.

Question 54

A biologist is studying the part of the brain which is associated in the learning of new motor skills and is responsible for balance and posture.Based on this information you would conclude that he or she is studying which of the following?

A)The hypothalamus
B)The cerebellum
C)The thalamus
D)The cerebrum
E)The medulla oblongata

Question 55

A low level of dopamine is associated with depression.

Question 56

Which lobe is responsible for vision?

A)The frontal
B)The parietal
C)The temporal
D)The occipital
E)The medulla

Question 57

Which of the following does not take place in the cerebrum?

A)Sensation
B)Reasoning
C)Balance
D)Learning
E)Memory

Question 58

The division of the autonomic nervous system which governs responses that occur during times of relaxation and is sometimes referred to as the "housekeeping division" is called:

A)The sympathetic division
B)The integration division
C)The parasympathetic division
D)The somatic division
E)The primary motor division

Question 59

If you were studying the portion of the nervous system outside of the central nervous system and contains nerves,you would be studying:

A)The integrated nervous system
B)The spinal nervous system
C)The motor nervous system
D)The sensory nervous system
E)The peripheral nervous system

Question 60

If you were studying the part of the human brain which receives sensory information from the skin and skeletal muscle you would be studying:

A)The primary somatosensory area
B)The primary motor area
C)The reticular activating system
D)The hypothalamus
E)The cerebellum

Question 61

After being hit in the head with a baseball during practice,Zach started having trouble with his short-term memory.Which component of the limbic system was most likely damaged as the result of his injury?

A)Basal nuclei
B)Diencephalon
C)Frontal lobe of the cerebrum
D)Parietal lobe of the cerebrum
E)Frontal lobe of the cerebellum

Question 62

Which of the following is the correct sequence in a reflex arc:
A)detect stimulus
B)muscle contraction to move away from the stimulus
C)nerve impulse travels along the motor neuron to the effector
D)sensory neurons pass the impulse to the interneurons in the grey matter
E)sensory receptors generate an impulse along the axon

A)a - c - d - e - b
B)a - d - e - b - c
C)b - a - c - d - e
D)a- e - d - c - b
E)e - d - c - b - a

Question 63

Due to a car accident,a patient has suffered partial damage to several of his peripheral nerves.Which of the following statements is the most accurate in describing the level of his neural damage?

A)The myelin sheath and nerve fiber has been destroyed but the outer covering of the nerve is still intact.
B)The myelin sheath is intact,but the axon and outer covering of the nerve have both been damaged.
C)The axon has been damaged,but the myelin sheath and outer covering are still intact.
D)The outer covering and bundles of nerve fibers have been damaged but the myelin sheath and axons are still intact.
E)The bundles of nerve fibers and axons have been damaged while the myelin sheath and outer covering are still intact.

Question 64

Which of the following list describes a person who is experiencing a "fight or flight" response?

A)Pupils are dilated,the lungs are expanded due to the dilation of the bronchioles,heart rate has increased and the digestive system has slowed down.
B)Pupils are constricted,the lungs are expanded due to the dilation of the bronchioles,heart rate has decreased and the digestive system has slowed down.
C)Pupils are dilated,the lungs are expanded due to the dilation of the bronchioles,heart rate has increased and the digestive system has increased.
D)Pupils are dilated,the lungs are expanded due to the constriction of the bronchioles,heart rate has increased and the digestive system has slowed down.
E)Pupils are dilated,the lungs are expanded due to the dilation of the bronchioles,heart rate has decreased and the digestive system has slowed down.