Question 1

Which of the following statements concerning the primary motor area is not true?

Accepted Answer

A)  The area that controls the thumb, fingers, and hand is larger than the area controlling the leg. 
B)  The primary motor area is located anterior to the central sulcus. 
C)  Control of muscles responsible for facial movements take up a large portion of the primary motor area. 
D)  Voluntary commands to skeletal muscles begin in the primary motor area. 
E)  The primary motor area is in the cerebellum. 
A)  The area that controls the thumb, fingers, and hand is larger than the area controlling the leg. 
B)  The primary motor area is located anterior to the central sulcus. 
C)  Control of muscles responsible for facial movements take up a large portion of the primary motor area. 
D)  Voluntary commands to skeletal muscles begin in the primary motor area. 
E)  The primary motor area is in the cerebellum. E

Question 2

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 
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 A

Question 3

Which is the largest part of the brain?

Accepted Answer

A)  medulla oblongata 
B)  midbrain 
C)  diencephalon 
D)  cerebellum 
E)  cerebrum 
A)  medulla oblongata 
B)  midbrain 
C)  diencephalon 
D)  cerebellum 
E)  cerebrum E

Question 4

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 5

The spinal cord extends from the base of the brain through a large opening in the skull called the inferior ventricle.

Accepted Answer

A) True 
 B)False

Question 6

The gap where there is no myelin sheath around a nerve fiber is called a node of Ranvier.

Accepted Answer

A) True 
 B)False

Question 7

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 8

When a neurotransmitter is released into the synaptic cleft,the response of the receiving neuron will be toward excitation.

Accepted Answer

A) True 
 B)False

Question 9

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 10

The cerebrum is associated with the

Accepted Answer

A)  two lateral ventricles. 
B)  third ventricle. 
C)  fourth ventricle. 
A)  two lateral ventricles. 
B)  third ventricle. 
C)  fourth ventricle.

Question 11

Why is the outside of a neuron positively charged?

Accepted Answer

A)  because sodium ions gather around the outside of the cell membrane 
B)  because calcium ions gather around the outside of the cell membrane 
C)  because potassium ions gather around the inside of the cell membrane 
D)  because sodium ions gather around the inside of the cell membrane 
E)  because chloride ions gather around the outside of the cell membrane 
A)  because sodium ions gather around the outside of the cell membrane 
B)  because calcium ions gather around the outside of the cell membrane 
C)  because potassium ions gather around the inside of the cell membrane 
D)  because sodium ions gather around the inside of the cell membrane 
E)  because chloride ions gather around the outside of the cell membrane

Question 12

Which of the following is not a function of the nervous system?

Accepted Answer

A)  receive sensory input 
B)  cushion and protect soft tissue 
C)  perform information processing 
D)  perform integration 
E)  generate motor output 
A)  receive sensory input 
B)  cushion and protect soft tissue 
C)  perform information processing 
D)  perform integration 
E)  generate motor output

Question 13

Which of the following is mismatched?

Accepted Answer

A)  sensory nerves--afferent 
B)  motor nerves--efferent 
C)  somatic motor nerves: smooth muscle, cardiac muscle, glands 
D)  somatic sensory nerves--skin, muscles, joints, special senses 
E)  visceral sensory nerves--body organs 
A)  sensory nerves--afferent 
B)  motor nerves--efferent 
C)  somatic motor nerves: smooth muscle, cardiac muscle, glands 
D)  somatic sensory nerves--skin, muscles, joints, special senses 
E)  visceral sensory nerves--body organs

Question 14

Which of the following is not a neurotransmitter?

Accepted Answer

A)  acetylcholine 
B)  serotonin 
C)  glutamate 
D)  GABA 
E)  ATP 
A)  acetylcholine 
B)  serotonin 
C)  glutamate 
D)  GABA 
E)  ATP

Question 15

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 16

The action potential in a neuron is an all-or-nothing event.

Accepted Answer

A) True 
 B)False

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

Which of the following is a neuromodulator?

Accepted Answer

A)  substance P 
B)  GABA 
C)  acetylcholine 
D)  dopamine 
E)  serotonin 
A)  substance P 
B)  GABA 
C)  acetylcholine 
D)  dopamine 
E)  serotonin

Question 19

The entire action potential (depolarization and repolarization)occurs in a matter of

Accepted Answer

A)  milliseconds. 
B)  seconds. 
C)  minutes. 
A)  milliseconds. 
B)  seconds. 
C)  minutes.

Question 20

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.

Exam 13: Nervous System

Which of the following statements concerning the primary motor area is not true?

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

Which is the largest part of the brain?

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

The spinal cord extends from the base of the brain through a large opening in the skull called the inferior ventricle.

The gap where there is no myelin sheath around a nerve fiber is called a node of Ranvier.

Which conducts an action potential faster and why?

When a neurotransmitter is released into the synaptic cleft,the response of the receiving neuron will be toward excitation.

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

The cerebrum is associated with the

Why is the outside of a neuron positively charged?

Which of the following is not a function of the nervous system?

Which of the following is mismatched?

Which of the following is not a neurotransmitter?

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

The action potential in a neuron is an all-or-nothing event.

Wernicke's area is associated with

Which of the following is a neuromodulator?

The entire action potential (depolarization and repolarization)occurs in a matter of

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

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