Question 1

These convert environmental information into impulses that are conducted to the central nervous system.

Accepted Answer

A)   sensory receptors
B)   motor nerves
C)   effectors
D)   neuroglia
E)   myelinF) B) and D)
G) A) and B)

Question 2

Unmyelinated axons and neuron cell bodies form

Accepted Answer

A)   gray matter.
B)   white matter.
C)   nodes of Ranvier.
D)   chromatophilic substance.E) B) and C)
F) A) and D)

Question 3

Within the meninges,cerebrospinal fluid occupies the

Accepted Answer

A)   pia mater.
B)   dura mater.
C)   epidural space.
D)   subarachnoid space.
E)   none of the above.F) B) and C)
G) A) and B)

Question 4

These neuroglia provide structural support between neurons and blood vessels,have numerous processes,and help regulate extracellular nutrient and ion concentration.

Accepted Answer

A)   astrocytes
B)   ependymal cells
C)   oligodendrocytes
D)   microglia
E)   Schwann cellsF) C) and E)
G) All of the above

Question 5

The cellular processes of neurons that provide receptive surfaces for input from other neurons are

Accepted Answer

A)   neurofibrils.
B)   Nissl fibers.
C)   axons.
D)   dendrites.
E)   nuclei.F) None of the above
G) A) and B)

Question 6

The simplest nerve pathway in the body is called a(n)

Accepted Answer

A)   reflex arc.
B)   effector route.
C)   reception path.
D)   output relay.E) A) and B)
F) A) and D)

Question 7

Cell bodies of motor neurons are located in the anterior horns of the spinal cord.

Accepted Answer

A) True 
 B)False

Question 8

A neuron's "trigger zone" is the

Accepted Answer

A)   axon hillock.
B)   axon terminal.
C)   soma.
D)   synaptic knob.E) C) and D)
F) A) and B)

Question 9

Efferent neurons carry impulses from the central nervous system to effectors.

Accepted Answer

A) True 
 B)False

Question 10

The respiratory areas are in the pons and in the

Accepted Answer

A)   thalamus.
B)   cerebrum.
C)   midbrain.
D)   medulla oblongata.
E)   cerebellum.F) D) and E)
G) C) and E)

Question 11

Impulse conduction is ________ in myelinated nerve fibers.

Accepted Answer

A)   faster
B)   slowerC) A) and B)
D) undefined

Question 12

Which is NOT a method for clearing neurotransmitters from the synaptic cleft?

Accepted Answer

A)   decomposition by enzymes
B)   reuptake by the releasing neuron
C)   diffusion away from the synapse
D)   phagocytosis by dendritic cellsE) A) and C)
F) None of the above

Question 13

Bundles of axons that carry impulses into the brain or spinal cord are

Accepted Answer

A)   sensory nerves.
B)   motor nerves.
C)   mixed nerves.
D)   all of these.E) A) and C)
F) All of the above

Question 14

This branch of the autonomic nervous system prepares the body for stressful or emergency situations.

Accepted Answer

A)   parasympathetic
B)   sympathetic
C)   somatic
D)   visceral afferentE) A) and C)
F) C) and D)

Question 15

The butterfly shape seen in a cross section of the spinal cord is composed of white matter.

Accepted Answer

A) True 
 B)False

Question 16

Pulling your hand away from a hot pot is an example of

Accepted Answer

A)   a withdrawal reflex.
B)   a stretch reflex.
C)   an extensor reflex.
D)   a tension reflex.E) C) and D)
F) All of the above A

Question 17

Which of the following are adrenergic fibers?

Accepted Answer

A)   parasympathetic postganglionic fibers
B)   sympathetic postganglionic fibers
C)   parasympathetic preganglionic fibers
D)   sympathetic preganglionic fibers
E)   motor fibers to skeletal muscleF) D) and E)
G) C) and E) B

Question 18

The olfactory nerves and optic nerves are mixed nerves.

Accepted Answer

A) True 
 B)False  False

Question 19

The outermost layer of the meninges is the __________ mater.

Accepted Answer

The answer of The outermost layer of the meninges is...

Question 20

Which list gives the following five parts of a reflex arc in order? (1) central nervous system, (2) effector, (3) motor neuron, (4) receptor, (5) sensory neuron

Accepted Answer

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

Exam 9: Nervous System

These convert environmental information into impulses that are conducted to the central nervous system.

Correct AnswerverifiedShow Answer

Unmyelinated axons and neuron cell bodies form

Correct AnswerverifiedShow Answer

Within the meninges,cerebrospinal fluid occupies the

Correct AnswerverifiedShow Answer

These neuroglia provide structural support between neurons and blood vessels,have numerous processes,and help regulate extracellular nutrient and ion concentration.

Correct AnswerverifiedShow Answer

The cellular processes of neurons that provide receptive surfaces for input from other neurons are

Correct AnswerverifiedShow Answer

The simplest nerve pathway in the body is called a(n)

Correct AnswerverifiedShow Answer

Cell bodies of motor neurons are located in the anterior horns of the spinal cord.

Correct AnswerverifiedShow Answer

A neuron's "trigger zone" is the

Correct AnswerverifiedShow Answer

Efferent neurons carry impulses from the central nervous system to effectors.

Correct AnswerverifiedShow Answer

The respiratory areas are in the pons and in the

Correct AnswerverifiedShow Answer

Impulse conduction is ________ in myelinated nerve fibers.

Correct AnswerverifiedShow Answer

Which is NOT a method for clearing neurotransmitters from the synaptic cleft?

Correct AnswerverifiedShow Answer

Bundles of axons that carry impulses into the brain or spinal cord are

Correct AnswerverifiedShow Answer

This branch of the autonomic nervous system prepares the body for stressful or emergency situations.

Correct AnswerverifiedShow Answer

The butterfly shape seen in a cross section of the spinal cord is composed of white matter.

Correct AnswerverifiedShow Answer

Pulling your hand away from a hot pot is an example of

Correct AnswerverifiedA

Which of the following are adrenergic fibers?

Correct AnswerverifiedB

The olfactory nerves and optic nerves are mixed nerves.

Correct AnswerverifiedFalse

The outermost layer of the meninges is the __________ mater.

Correct AnswerverifiedShow Answer

Which list gives the following five parts of a reflex arc in order? (1) central nervous system, (2) effector, (3) motor neuron, (4) receptor, (5) sensory neuron

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified
B

Correct Answer
verified
False

Correct Answer
verified

Correct Answer
verified