Question 1

Which of the following statements about the autonomic nervous system is NOT true?

Accepted Answer

A)   The autonomic nervous system regulates the activities of cardiac and smooth muscle and glands.
B)   The sympathetic nervous system deals with "fight-or-flight" responses.
C)   The functions of the autonomic system are generally involuntary and subconscious.
D)   The parasympathetic nervous system promotes actions associated with relaxation.
E)   The neurotransmitter associated with the parasympathetic system is norepinephrine.F) A) and C)
G) B) and E)

Question 2

When the dorsal root of a spinal nerve is cut

Accepted Answer

A)   death immediately occurs.
B)   incoming sensory nerve impulses are lost.
C)   outgoing motor nerve impulses are lost.
D)   impulses do not cross over to the other side of the body.E) None of the above
F) A) and B)

Question 3

There are two major groups of nervous system drugs. Drugs in one group retard heartbeat, promote digestion, contract the eye pupil, etc. The other drugs have the opposite effect. These drugs are affecting the

Accepted Answer

A)   motor and sensory nerves.
B)   sympathetic and parasympathetic nervous systems.
C)   central and peripheral nervous systems.
D)   neurostimulatory and neuroinhibitory synapses.
E)   cerebrum and cerebellum, respectively.F) A) and B)
G) B) and D)

Question 4

If a person steps on a tack their somatic system will take over and produce a reflex action. A reflex action

Accepted Answer

A)   is an automatic, involuntary response.
B)   does not require the central nervous system.
C)   is normally controlled consciously.
D)   has no protective value.
E)   is only found in humans.F) D) and E)
G) B) and E)

Question 5

What structure of the spinal cord carries motor impulses from the brain?

Accepted Answer

A)   ventral root
B)   dorsal root
C)   dorsal root ganglion
D)   dorsal hornE) A) and C)
F) All of the above

Question 6

The part of the brain that integrates sensory input from the eyes, ears, muscles, and joins with motor information from the cerebral cortex is the

Accepted Answer

A)   cerebrum.
B)   cerebellum.
C)   brain stem.
D)   diencephalon.E) C) and D)
F) B) and C)

Question 7

The functions of the human nervous system include

Accepted Answer

A)   sensory input.
B)   integration.
C)   generation of motor output.
D)   All of the choices characterize the human nervous system's functions.
E)   detection of stimuli.F) B) and D)
G) All of the above

Question 8

Some memories are emotionally charged because the amygdala triggers associations between fear and sensory information.

Accepted Answer

A) True 
 B)False

Question 9

When a finger or other appendage is severed in an accident, it is possible to surgically rejoin most tissues (bone, skin, etc.) , which will then grow and heal. However, a cut through an appendage nerve is currently very difficult to reconnect. What structures are severed when the nerves in an appendage are severed?

Accepted Answer

A)   axons
B)   synapses
C)   cell bodies
D)   dendrites
E)   interneuronsF) A) and E)
G) All of the above A

Question 10

The peripheral nervous system consists of

Accepted Answer

A)   nerves in the entire nervous system.
B)   ganglia.
C)   nerves and ganglia that lie outside the CNS.
D)   the brain and spinal cord.
E)   the brain, spinal cord, and nerves.F) B) and D)
G) None of the above

Question 11

Which of the following statements about axonal membranes is NOT true?

Accepted Answer

A)   The resting potential of a typical neuron is -65 mV.
B)   There is an electrical potential difference across a neuron's membrane.
C)   The polarity correlates with a difference in ion distribution across the membrane.
D)   At rest, there is a higher concentration of sodium ions inside the axon.
E)   The sodium-potassium pump establishes a concentration gradient across the membrane.F) A) and D)
G) None of the above

Question 12

Action potentials travel down nonmyelinated axons at _____ action potentials travel down myelinated axons.

Accepted Answer

A)   slower speeds than
B)   faster speeds than
C)   the same speed
D)   variable speeds, sometimes faster and sometimes slower thanE) None of the above
F) A) and D)

Question 13

The spinal cord allows for reflex actions to be relayed from the stimulus to the brain along the tracts of unmyelinated white matter.

Accepted Answer

A) True 
 B)False

Question 14

The functional units of the nervous system are

Accepted Answer

A)   neuromodulators.
B)   nerve nets.
C)   neuroglia.
D)   neurons.E) B) and D)
F) All of the above

Question 15

Examine the picture to answer the following questions and identify the labeled structures.  A: _____
B: _____
C: _____
D: _____
E: _____
F: _____
G: ____

Accepted Answer

H: IS THE NEURON PICTURED A SENSORY, ASS...

Question 16

Neurotransmitters are molecules that cross the synaptic cleft and

Accepted Answer

A)   always inhibit the postsynaptic neuron.
B)   always excite the postsynaptic neuron.
C)   either excite or inhibit the postsynaptic neuron.
D)   integrate the pre-synaptic action potential.
E)   None of these.F) D) and E)
G) A) and D) C

Question 17

At rest, the inside of the neuron is

Accepted Answer

A)   negatively charged.
B)   positively charged.
C)   neutral, or equal to the exterior charge.
D)   None of the choices are correct, since neurons are never at rest.E) A) and B)
F) B) and C)

Question 18

What unique structural adaptations are found in the mammalian brain that allowed mammals to become adept at higher mental activities?

Accepted Answer

A)   A higher degree of crevasses and folds in the neocortex that increases the surface area of the brain.
B)   An increased number of blood vessels that increases the vascularization of the brain.
C)   An enlarged pons.
D)   A cranium that will protect the brain from damage.
E)   A more direct connection to the spinal cord for faster conduction of neural impulses.F) B) and C)
G) B) and D)

Question 19

How do cholinesterase inhibitors improve the learning and memory of people who are suffering from Alzheimer's Disease?

Accepted Answer

A)   Cholinesterase inhibitors will increase the levels of acetylcholine in the brain. This will increase the neural functioning in brain regions associated with learning and memory.
B)   Cholinesterase inhibitors will decrease the levels of acetylcholine in the brain. This will increase the neural functioning in brain regions associated with learning and memory.
C)   Cholinesterase inhibitors will increase the levels of testosterone in the brain. This will increase the neural functioning in brain regions associated with learning and memory.
D)   Cholinesterase inhibitors will decrease the levels of cerebral spinal fluid in the brain. This will decrease neural pressure associated with the brain regions associated with learning and memory.E) A) and B)
F) A) and C) A

Question 20

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

Accepted Answer

A)   medulla oblongata
B)   hypothalamus
C)   cerebellum
D)   cerebrum
E)   ponsF) A) and D)
G) B) and E)

Exam 37: Neurons and Nervous Systems

Which of the following statements about the autonomic nervous system is NOT true?

Correct Answer
verified

When the dorsal root of a spinal nerve is cut

Correct Answer
verified

There are two major groups of nervous system drugs. Drugs in one group retard heartbeat, promote digestion, contract the eye pupil, etc. The other drugs have the opposite effect. These drugs are affecting the

Correct Answer
verified

If a person steps on a tack their somatic system will take over and produce a reflex action. A reflex action

Correct Answer
verified

What structure of the spinal cord carries motor impulses from the brain?

Correct Answer
verified

The part of the brain that integrates sensory input from the eyes, ears, muscles, and joins with motor information from the cerebral cortex is the

Correct Answer
verified

The functions of the human nervous system include

Correct Answer
verified

Some memories are emotionally charged because the amygdala triggers associations between fear and sensory information.

Correct Answer
verified

Correct Answer
verified
A

The peripheral nervous system consists of

Correct Answer
verified

Which of the following statements about axonal membranes is NOT true?

Correct Answer
verified

Action potentials travel down nonmyelinated axons at _____ action potentials travel down myelinated axons.

Correct Answer
verified

The spinal cord allows for reflex actions to be relayed from the stimulus to the brain along the tracts of unmyelinated white matter.

Correct Answer
verified

The functional units of the nervous system are

Correct Answer
verified

Examine the picture to answer the following questions and identify the labeled structures. A: ___ B: _ C: _ D: _ E: _ F: _ G: __

Correct Answer
verified
H: IS THE NEURON PICTURED A SENSORY, ASS...
View Answer

Neurotransmitters are molecules that cross the synaptic cleft and

Correct Answer
verified
C

At rest, the inside of the neuron is

Correct Answer
verified

What unique structural adaptations are found in the mammalian brain that allowed mammals to become adept at higher mental activities?

Correct Answer
verified

How do cholinesterase inhibitors improve the learning and memory of people who are suffering from Alzheimer's Disease?

Correct Answer
verified
A

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

Correct Answer
verified

Exam 37: Neurons and Nervous Systems

Which of the following statements about the autonomic nervous system is NOT true?

Correct AnswerverifiedShow Answer

When the dorsal root of a spinal nerve is cut

Correct AnswerverifiedShow Answer

There are two major groups of nervous system drugs. Drugs in one group retard heartbeat, promote digestion, contract the eye pupil, etc. The other drugs have the opposite effect. These drugs are affecting the

Correct AnswerverifiedShow Answer

If a person steps on a tack their somatic system will take over and produce a reflex action. A reflex action

Correct AnswerverifiedShow Answer

What structure of the spinal cord carries motor impulses from the brain?

Correct AnswerverifiedShow Answer

The part of the brain that integrates sensory input from the eyes, ears, muscles, and joins with motor information from the cerebral cortex is the

Correct AnswerverifiedShow Answer

The functions of the human nervous system include

Correct AnswerverifiedShow Answer

Some memories are emotionally charged because the amygdala triggers associations between fear and sensory information.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedA

The peripheral nervous system consists of

Correct AnswerverifiedShow Answer

Which of the following statements about axonal membranes is NOT true?

Correct AnswerverifiedShow Answer

Action potentials travel down nonmyelinated axons at _____ action potentials travel down myelinated axons.

Correct AnswerverifiedShow Answer

The spinal cord allows for reflex actions to be relayed from the stimulus to the brain along the tracts of unmyelinated white matter.

Correct AnswerverifiedShow Answer

The functional units of the nervous system are

Correct AnswerverifiedShow Answer

Examine the picture to answer the following questions and identify the labeled structures. A: _____ B: _____ C: _____ D: _____ E: _____ F: _____ G: ____

Correct AnswerverifiedH: IS THE NEURON PICTURED A SENSORY, ASS...View AnswerShow Answer

Neurotransmitters are molecules that cross the synaptic cleft and

Correct AnswerverifiedC

At rest, the inside of the neuron is

Correct AnswerverifiedShow Answer

What unique structural adaptations are found in the mammalian brain that allowed mammals to become adept at higher mental activities?

Correct AnswerverifiedShow Answer

How do cholinesterase inhibitors improve the learning and memory of people who are suffering from Alzheimer's Disease?

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

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A

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verified

Examine the picture to answer the following questions and identify the labeled structures. A: ___ B: _ C: _ D: _ E: _ F: _ G: __

Correct Answer
verified
H: IS THE NEURON PICTURED A SENSORY, ASS...
View Answer

Correct Answer
verified
C

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A

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