Question 1

Sensory neurons carrying action potentials from pain receptors synapse within the spinal cord with interneurons.These interneurons synapse with motor neurons leading back to an effector and ascending neurons that carry action potentials toward the brain.This is an example of a(n) _____ pathway.

Accepted Answer

A)  convergent
B)  divergent
C)  reverberating
D)  sensory
E)  bifurcatedF) A) and B)
G) A) and C)

Question 2

White matter is composed of

Accepted Answer

A)  ganglial sheaths.
B)  bundles of myelinated axons.
C)  collections of nerve cell bodies.
D)  bundles containing both myelinated axons and nerve cell bodies.
E)  collections of unmyelinated axons.F) A) and D)
G) A) and C)

Question 3

If you cut bundles of axons and their myelin sheaths in the PNS,you cut

Accepted Answer

A)  ganglia.
B)  nuclei.
C)  nerves.
D)  gray matter.
E)  nerve tracts.F) C) and E)
G) A) and D)

Question 4

Nissl bodies are

Accepted Answer

A)  part of a dendrite.
B)  also called gemmules.
C)  lipid droplets.
D)  areas of rough endoplasmic reticulum.
E)  part of the Golgi apparatus.F) A) and B)
G) C) and D)

Question 5

Multiple sclerosis is a neurological disorder in which myelin sheaths in the CNS are destroyed.Which of the following neuroglial cells is being damaged in multiple sclerosis?

Accepted Answer

A)  astrocyte
B)  microglial cell
C)  oligodendrocyte
D)  ependymal cell
E)  Schwann cellsF) C) and D)
G) B) and C)

Question 6

Most unipolar neurons are ____________ neurons.

Accepted Answer

The answer of Most unipolar neurons are ____________ neurons....

Question 7

Gray matter consists of bundles of myelinated axons.

Accepted Answer

A) True 
 B)False

Question 8

Fran has a microbial infection attacking his brain.Which cell type would you expect to proliferate and be most active during this time?

Accepted Answer

A)   astrocytes
B)   microglial cells
C)   oligodendrocytes
D)   ependymal cells
E)   Schwann cellsF) A) and B)
G) A) and C)

Question 9

During the absolute refractory period,the cell

Accepted Answer

A)  generates many local potentials.
B)  is insensitive to further stimulation.
C)  responds to even weak stimuli.
D)  reverses the direction of the action potential.
E)  is very sensitive.F) D) and E)
G) B) and D)

Question 10

Digestion of food is regulated by the

Accepted Answer

A)  sensory division.
B)  sympathetic division of the ANS.
C)  parasympathetic division of the ANS.
D)  somatic nervous system.
E)  None of these choices are correct.F) C) and E)
G) A) and C)

Question 11

The autonomic nervous system

Accepted Answer

A)  stimulates skeletal muscle contractions.
B)  has two sets of neurons in a series.
C)  is involved in problem solving.
D)  is under voluntary control.
E)  does not include the central nervous system.F) C) and D)
G) A) and B)

Question 12

Saltatory conduction of an action potential means that

Accepted Answer

A)  once one action potential is created,it moves down the axon.
B)  the whole axon depolarizes at the same time.
C)  one action potential stimulates the production of a new action potential at the adjacent site.
D)  an action potential is conducted from one node of Ranvier to the next node.E) All of the above
F) C) and D)

Question 13

-The figure illustrates the Action Potential.What does "D" represent?

Accepted Answer

A)  repolarization
B)  depolarization
C)  local potential
D)  threshold
E)  afterpotentialF) B) and C)
G) C) and D)

Question 14

The sensory (afferent) division of the peripheral nervous system

Accepted Answer

A)  transmits action potentials to sensory organs.
B)  conveys action potentials to the CNS.
C)  stimulates glands to release hormones.
D)  stimulates muscle contractions.
E)  does not involve sensory receptors.F) C) and D)
G) A) and E)

Question 15

LouAnn is being treated for a neurological condition with a specific drug that target neurons deep within the brain.Which glial cell must be bypassed by this drug in order for it to be effective?

Accepted Answer

A)   astrocyte
B)   microglial cell
C)   oligodendrocyte
D)   ependymal cell
E)   macrophageF) B) and D)
G) All of the above

Question 16

The nervous system has two subdivisions - the central nervous system and the ____________ nervous system.

Accepted Answer

The answer of The nervous system has two subdivisions -...

Question 17

Gray matter on the surface of the brain is/are called

Accepted Answer

A)  the cortex.
B)  nuclei.
C)  ganglia.
D)  tracts.E) B) and D)
F) C) and D)

Question 18

Which of the following is responsible for problem-solving skills?

Accepted Answer

A)  central nervous system
B)  peripheral nervous system
C)  somatic nervous system
D)  autonomic nervous system
E)  None of these choices is correct.F) A) and C)
G) All of the above

Question 19

Schwann cells differ from oligodendrocytes in which of the following ways?

Accepted Answer

A)  Schwann cells form myelin; oligodendrocytes do not.
B)  Oligodendrocytes are only found in the PNS; Schwann cells are only found in the CNS.
C)  Schwann cells form sheaths around several axons,while oligodendrocytes form sheaths around only one axon.
D)  Schwann cells form a myelin sheath around a portion of only one axon,while oligodendrocytes can surround portions of several axons.
E)  None of these choices are true differences.F) A) and D)
G) A) and C)

Question 20

Protein synthesis in neurons occurs in

Accepted Answer

A)  axons.
B)  dendrites.
C)  cell bodies or soma.
D)  terminal boutons.
E)  node of Ranvier.F) C) and D)
G) C) and E)

Exam 11: Functional Organization of Nervous Tissue

During the absolute refractory period,the cell

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Gray matter on the surface of the brain is/are called

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Gray matter consists of bundles of myelinated axons.

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Saltatory conduction of an action potential means that

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Protein synthesis in neurons occurs in

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Sensory neurons carrying action potentials from pain receptors synapse within the spinal cord with interneurons.These interneurons synapse with motor neurons leading back to an effector and ascending neurons that carry action potentials toward the brain.This is an example of a(n) _____ pathway.

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The sensory (afferent) division of the peripheral nervous system

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Multiple sclerosis is a neurological disorder in which myelin sheaths in the CNS are destroyed.Which of the following neuroglial cells is being damaged in multiple sclerosis?

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If you cut bundles of axons and their myelin sheaths in the PNS,you cut

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LouAnn is being treated for a neurological condition with a specific drug that target neurons deep within the brain.Which glial cell must be bypassed by this drug in order for it to be effective?

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Fran has a microbial infection attacking his brain.Which cell type would you expect to proliferate and be most active during this time?

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The nervous system has two subdivisions - the central nervous system and the ____________ nervous system.

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The autonomic nervous system

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-The figure illustrates the Action Potential.What does "D" represent?

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Which of the following is responsible for problem-solving skills?

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Schwann cells differ from oligodendrocytes in which of the following ways?

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Nissl bodies are

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White matter is composed of

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Most unipolar neurons are ____________ neurons.

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Digestion of food is regulated by the

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