Question 1

Which of the following statements is not true concerning acetylcholine's function?

Accepted Answer

A)  Acetylcholine has an excitatory effect on smooth muscle and glands. 
B)  Acetylcholine is active in both the CNS and PNS. 
C)  In the PNS, acetylcholine excites skeletal muscle. 
D)  In the PNS, acetylcholine inhibits cardiac muscle. 
E)  The enzyme acetylcholinesterase removes acetylcholine from the receiving cell's membrane. 
A)  Acetylcholine has an excitatory effect on smooth muscle and glands. 
B)  Acetylcholine is active in both the CNS and PNS. 
C)  In the PNS, acetylcholine excites skeletal muscle. 
D)  In the PNS, acetylcholine inhibits cardiac muscle. 
E)  The enzyme acetylcholinesterase removes acetylcholine from the receiving cell's membrane.

Question 2

Which of the following is not a part of the brain?

Accepted Answer

A)  corpus callosum 
B)  central canal 
C)  cerebrum 
D)  cerebellum 
E)  pons 
A)  corpus callosum 
B)  central canal 
C)  cerebrum 
D)  cerebellum 
E)  pons

Question 3

Which of the following could happen to the neurotransmitter once it binds to the receiving membrane receptors?

Accepted Answer

A)  reabsorbed by the sending membrane 
B)  absorbed by the receiving membrane in order to start the action potential 
C)  stays bound to the receiving membrane 
D)  released back into the synaptic cleft where it builds up 
E)  degrades due to lack of Ca+ 
A)  reabsorbed by the sending membrane 
B)  absorbed by the receiving membrane in order to start the action potential 
C)  stays bound to the receiving membrane 
D)  released back into the synaptic cleft where it builds up 
E)  degrades due to lack of Ca+

Question 4

Which brain system receives sensory information from the skin,skeletal muscles,and tendons?

Accepted Answer

A)  somatic system of the PNS 
B)  somatic system of the CNS 
C)  autonomic system of the PNS 
D)  autonomic system of the CNS 
E)  all of these 
A)  somatic system of the PNS 
B)  somatic system of the CNS 
C)  autonomic system of the PNS 
D)  autonomic system of the CNS 
E)  all of these

Question 5

Which of the following statements is not true concerning spinal nerves?

Accepted Answer

A)  The ventral root contains motor fibers exiting the gray matter. 
B)  The dorsal root contains sensory fibers entering the gray matter. 
C)  Spinal nerves are considered part of the CNS. 
D)  The dorsal and ventral roots join before the spinal nerve leaves the vertebral canal. 
E)  The spinal nerves project from the cord through intervertebral foramina. 
A)  The ventral root contains motor fibers exiting the gray matter. 
B)  The dorsal root contains sensory fibers entering the gray matter. 
C)  Spinal nerves are considered part of the CNS. 
D)  The dorsal and ventral roots join before the spinal nerve leaves the vertebral canal. 
E)  The spinal nerves project from the cord through intervertebral foramina.

Question 6

The intensity of a message is determined by how many action potentials are generated within a given time.

Accepted Answer

A) True 
 B)False

Question 7

Depolarization of the neuron occurs when

Accepted Answer

A)  the potassium gates open and potassium moves outside the cell. 
B)  the sodium-potassium pump moves sodium inside the cell. 
C)  sodium gates open and sodium moves inside the cell. 
D)  the sodium-potassium pump moves potassium inside the cell. 
E)  water moves to the outside of the cell and chloride ions follow. 
A)  the potassium gates open and potassium moves outside the cell. 
B)  the sodium-potassium pump moves sodium inside the cell. 
C)  sodium gates open and sodium moves inside the cell. 
D)  the sodium-potassium pump moves potassium inside the cell. 
E)  water moves to the outside of the cell and chloride ions follow.

Question 8

The white matter of the spinal cord surrounds the gray matter.

Accepted Answer

A) True 
 B)False

Question 9

When a student pulls an all-nighter to cram for a test the next day,the information usually goes into

Accepted Answer

A)  skill memory. 
B)  episodic memory. 
C)  semantic memory. 
D)  long-term memory. 
E)  short-term memory. 
A)  skill memory. 
B)  episodic memory. 
C)  semantic memory. 
D)  long-term memory. 
E)  short-term memory.

Question 10

Which conducts an action potential faster and why?

Accepted Answer

A)  myelinated fibers; the action potential moves through the myelin which allows it to travel faster 
B)  myelinated fibers; the action potential jumps from one node of Ranvier to another 
C)  unmyelinated fibers; the absence of myelin allows the action potential to travel faster 
D)  unmyelinated fibers; the action potential jumps from one node of Ranvier to another 
E)  unmyelinated fibers; the ions can move in and out of the cell faster without the myelin coating 
A)  myelinated fibers; the action potential moves through the myelin which allows it to travel faster 
B)  myelinated fibers; the action potential jumps from one node of Ranvier to another 
C)  unmyelinated fibers; the absence of myelin allows the action potential to travel faster 
D)  unmyelinated fibers; the action potential jumps from one node of Ranvier to another 
E)  unmyelinated fibers; the ions can move in and out of the cell faster without the myelin coating

Question 11

In what way are the somatic motor pathway and the parasympathetic autonomic motor pathway similar?

Accepted Answer

A)  Both innervate glands and organs. 
B)  Both innervate the skeletal muscles. 
C)  Both utilize two neurons per message. 
D)  Both use acetylcholine as a neurotransmitter. 
E)  Both are voluntary. 
A)  Both innervate glands and organs. 
B)  Both innervate the skeletal muscles. 
C)  Both utilize two neurons per message. 
D)  Both use acetylcholine as a neurotransmitter. 
E)  Both are voluntary.

Question 12

Which of the following types of nerves is not covered by a protective myelin sheath?

Accepted Answer

A)  long axons 
B)  gray matter of the CNS 
C)  white matter of the CNS 
D)  nerve fibers within the PNS 
E)  axons of the CNS 
A)  long axons 
B)  gray matter of the CNS 
C)  white matter of the CNS 
D)  nerve fibers within the PNS 
E)  axons of the CNS

Question 13

How is alcohol classified?

Accepted Answer

A)  stimulant 
B)  depressant 
C)  psychoactive 
D)  inhibitor 
E)  none of these 
A)  stimulant 
B)  depressant 
C)  psychoactive 
D)  inhibitor 
E)  none of these

Question 14

Which of the following statements is not true concerning the central nervous system?

Accepted Answer

A)  The central nervous system is made up of the spinal cord and the brain. 
B)  The brain and spinal cord contain only white matter: myelinated axons that run together in bundles. 
C)  Both the brain and spinal cord are protected by bone. 
D)  Both the brain and spinal cord are protected by meninges. 
E)  The spaces around the brain and spinal cord are filled with fluid. 
A)  The central nervous system is made up of the spinal cord and the brain. 
B)  The brain and spinal cord contain only white matter: myelinated axons that run together in bundles. 
C)  Both the brain and spinal cord are protected by bone. 
D)  Both the brain and spinal cord are protected by meninges. 
E)  The spaces around the brain and spinal cord are filled with fluid.

Question 15

Which brain structure is associated with the limbic system?

Accepted Answer

A)  hippocampus 
B)  frontal lobes 
C)  medulla oblongata 
D)  pons 
E)  brain stem 
A)  hippocampus 
B)  frontal lobes 
C)  medulla oblongata 
D)  pons 
E)  brain stem

Question 16

Which of the following is associated with the PNS but not the CNS?

Accepted Answer

A)  Schwann cells 
B)  myelin sheath 
C)  axon 
D)  dendrite 
E)  node of Ranvier 
A)  Schwann cells 
B)  myelin sheath 
C)  axon 
D)  dendrite 
E)  node of Ranvier

Question 17

Wernicke's area is associated with

Accepted Answer

A)  reflex centers for controlling heartbeat. 
B)  sexual arousal. 
C)  the ability to ride a bike. 
D)  the sense of smell. 
E)  the ability to speak. 
A)  reflex centers for controlling heartbeat. 
B)  sexual arousal. 
C)  the ability to ride a bike. 
D)  the sense of smell. 
E)  the ability to speak.

Question 18

What ensures the one-way direction of an action potential?

Accepted Answer

A)  As soon as the action potential has passed by, that portion of the axon undergoes a short refractory period. 
B)  Action potentials are self-propagating. 
C)  Conduction of an action potential is an all-or-none event. 
D)  An action potential at one node causes an action potential at the next node. 
E)  An axon can conduct a volley of action potentials very quickly. 
A)  As soon as the action potential has passed by, that portion of the axon undergoes a short refractory period. 
B)  Action potentials are self-propagating. 
C)  Conduction of an action potential is an all-or-none event. 
D)  An action potential at one node causes an action potential at the next node. 
E)  An axon can conduct a volley of action potentials very quickly.

Question 19

Place the following steps in the correct order for a reflex arc:
1)Sensory neurons pass signals to interneurons.
2)Nerve signals travel along motor fibers to an effector.
3)Sensory receptors generate nerve signals.
4)Interneurons synapse with motor neurons.
5)There is a response to the stimulus.

Accepted Answer

A)  3,4,1,2,5 
B)  2,1,3,4,5 
C)  1,2,3,4,5 
D)  3,1,4,2,5 
E)  2,4,1,3,5 
A)  3,4,1,2,5 
B)  2,1,3,4,5 
C)  1,2,3,4,5 
D)  3,1,4,2,5 
E)  2,4,1,3,5

Question 20

What type of memory does language depend upon?

Accepted Answer

A)  short-term 
B)  semantic 
C)  episodic 
D)  skill 
E)  long term 
A)  short-term 
B)  semantic 
C)  episodic 
D)  skill 
E)  long term

Exam 14: Nervous System

Which of the following statements is not true concerning acetylcholine's function?

Which of the following is not a part of the brain?

Which of the following could happen to the neurotransmitter once it binds to the receiving membrane receptors?

Which brain system receives sensory information from the skin,skeletal muscles,and tendons?

Which of the following statements is not true concerning spinal nerves?

The intensity of a message is determined by how many action potentials are generated within a given time.

Depolarization of the neuron occurs when

The white matter of the spinal cord surrounds the gray matter.

When a student pulls an all-nighter to cram for a test the next day,the information usually goes into

Which conducts an action potential faster and why?

In what way are the somatic motor pathway and the parasympathetic autonomic motor pathway similar?

Which of the following types of nerves is not covered by a protective myelin sheath?

How is alcohol classified?

Which of the following statements is not true concerning the central nervous system?

Which brain structure is associated with the limbic system?

Which of the following is associated with the PNS but not the CNS?

Wernicke's area is associated with

What ensures the one-way direction of an action potential?

Place the following steps in the correct order for a reflex arc: 1)Sensory neurons pass signals to interneurons. 2)Nerve signals travel along motor fibers to an effector. 3)Sensory receptors generate nerve signals. 4)Interneurons synapse with motor neurons. 5)There is a response to the stimulus.

What type of memory does language depend upon?

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