Question 1

The largest and most numerous of the glial cells in the central nervous system are the

Accepted Answer

A)  astrocytes.
B)  Schwann cells.
C)  oligodendrocytes.
D)  microglia.
E)  ependymal cells.F) D) and E)
G) B) and C)

Question 2

The two cerebral hemispheres are separated by the

Accepted Answer

A)  longitudinal fissure.
B)  central sulcus.
C)  lateral sulcus.
D)  frontal lobe.
E)  postcentral sulcus.F) D) and E)
G) C) and E)

Question 3

The midbrain has a slender CSF-filled canal known as the

Accepted Answer

A)  cerebral aqueduct.
B)  lateral ventricle.
C)  medulla oblongata.
D)  fourth ventricle.
E)  third ventricle.F) B) and D)
G) C) and D)

Question 4

The cortex inferior to the lateral sulcus is the

Accepted Answer

A)  parietal lobe.
B)  temporal lobe.
C)  frontal lobe.
D)  occipital lobe.
E)  cerebellar lobe.F) C) and E)
G) B) and D)

Question 5

If the dorsal root of a spinal nerve is severed,

Accepted Answer

A)  motor control of skeletal muscles would be impaired.
B)  motor control of visceral organs would be impaired.
C)  the spinal cord would not be able to process information at that level.
D)  the brain would not be able to communicate with that level of the spinal cord.
E)  incoming sensory information would be disrupted.F) C) and E)
G) A) and E)

Question 6

The area of sensory cortex devoted to a body region is relative to the

Accepted Answer

A)  size of the body region.
B)  distance of the body region from the brain.
C)  number of motor units in the region of the body.
D)  number of sensory receptors in the region of the body.
E)  size of the nerves that serve the region of the body.F) B) and C)
G) A) and E)

Question 7

A condition known as Bell's palsy is thought to be caused by an inflammation of the facial nerve (VII). What symptoms would one expect to see in a person suffering from this condition?

Accepted Answer

Patients suffering from Bell's palsy usu...

Question 8

Damage to the ________ nerve, which is vital for the autonomic control of visceral function, could result in death.

Accepted Answer

A)  abducens
B)  facial
C)  glossopharyngeal
D)  vagus
E)  hypoglossalF) A) and E)
G) A) and D)

Question 9

A few spiders produce a venom that is a calcium-channel blocker. Where would this venom have on nerve impulse transmission?

Accepted Answer

A)  at the axon terminal
B)  at the axon hillock
C)  along the dendrite
D)  along the cell body membrane
E)  at the postsynaptic membraneF) All of the above
G) A) and C)

Question 10

Which of the following neurotransmitters usually depolarizes postsynaptic neurons?

Accepted Answer

A)  serotonin
B)  dopamine
C)  GABA
D)  acetylcholine
E)  monoamine oxidaseF) B) and E)
G) A) and B)

Question 11

Photo Credit: Ralph T. Hutchings
Figure 8-1 Structural Components of the Brain (Sagittal Section) 
Use Figure 8-1 to identify the labeled part.
-Structure H is the

Accepted Answer

A)  midbrain.
B)  medulla oblongata.
C)  cerebellum.
D)  basal ganglia.
E)  pons.F) None of the above
G) A) and B)

Question 12

Bundles of CNS axons that share a common origin, destination, and function are called

Accepted Answer

A)  the cortex.
B)  centers.
C)  nuclei.
D)  tracts.
E)  ganglia.F) None of the above
G) A) and B)

Question 13

The thalamus is the largest portion of which major brain region?

Accepted Answer

A)  mesencephalon
B)  pons
C)  midbrain
D)  diencephalon
E)  cerebellumF) A) and D)
G) D) and E)

Question 14

Which of the following fibers usually release norepinephrine (NE) ?

Accepted Answer

A)  sympathetic postganglionic
B)  sympathetic preganglionic
C)  parasympathetic preganglionic
D)  parasympathetic postganglionic
E)  somaticF) A) and D)
G) D) and E)

Question 15

The only cranial nerve that is attached to the cerebrum is the

Accepted Answer

A)  optic.
B)  oculomotor.
C)  trochlear.
D)  olfactory.
E)  vestibulocochlear.F) A) and E)
G) B) and E)

Question 16

Effects produced by the parasympathetic branch of the autonomic nervous system include

Accepted Answer

A)  dilation of the pupils.
B)  increased secretion by digestive glands.
C)  dilation of respiratory passages.
D)  increased heart rate.
E)  increased tissue metabolism.F) A) and D)
G) A) and E)

Question 17

Which of the following contains a delicate network of collagen and elastin fibers through which cerebrospinal fluid circulates?

Accepted Answer

A)  epidural space
B)  dural sinus
C)  arachnoid villi
D)  subarachnoid space
E)  pia materF) B) and E)
G) D) and E)

Question 18

Monosynaptic reflexes

Accepted Answer

A)  are among the most complex reflex arcs.
B)  involve two or more sequential synapses.
C)  usually control slow motor responses.
D)  do not control stereotyped responses of the nervous system.
E)  are exemplified by the stretch reflex.F) C) and D)
G) B) and E)

Question 19

Photo Credit: Ralph T. Hutchings
Figure 8-1 Structural Components of the Brain (Sagittal Section) 
Use Figure 8-1 to identify the labeled part.
-Structure J is the

Accepted Answer

A)  midbrain.
B)  medulla oblongata.
C)  cerebellum.
D)  basal ganglia.
E)  pons.F) B) and C)
G) C) and D)

Question 20

Adrenergic synapses release the neurotransmitter

Accepted Answer

A)  acetylcholine.
B)  norepinephrine.
C)  dopamine.
D)  serotonin.
E)  GABA.F) C) and D)
G) B) and C)

Exam 8: The Nervous System

Bundles of CNS axons that share a common origin, destination, and function are called

Correct AnswerverifiedShow Answer

Photo Credit: Ralph T. Hutchings Figure 8-1 Structural Components of the Brain (Sagittal Section) Use Figure 8-1 to identify the labeled part. -Structure H is the

Correct AnswerverifiedShow Answer

The area of sensory cortex devoted to a body region is relative to the

Correct AnswerverifiedShow Answer

Damage to the ________ nerve, which is vital for the autonomic control of visceral function, could result in death.

Correct AnswerverifiedShow Answer

Photo Credit: Ralph T. Hutchings Figure 8-1 Structural Components of the Brain (Sagittal Section) Use Figure 8-1 to identify the labeled part. -Structure J is the

Correct AnswerverifiedShow Answer

The thalamus is the largest portion of which major brain region?

Correct AnswerverifiedShow Answer

Which of the following fibers usually release norepinephrine (NE) ?

Correct AnswerverifiedShow Answer

Which of the following contains a delicate network of collagen and elastin fibers through which cerebrospinal fluid circulates?

Correct AnswerverifiedShow Answer

The largest and most numerous of the glial cells in the central nervous system are the

Correct AnswerverifiedShow Answer

Which of the following neurotransmitters usually depolarizes postsynaptic neurons?

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A few spiders produce a venom that is a calcium-channel blocker. Where would this venom have on nerve impulse transmission?

Correct AnswerverifiedShow Answer

Adrenergic synapses release the neurotransmitter

Correct AnswerverifiedShow Answer

Monosynaptic reflexes

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A condition known as Bell's palsy is thought to be caused by an inflammation of the facial nerve (VII). What symptoms would one expect to see in a person suffering from this condition?

Correct AnswerverifiedPatients suffering from Bell's palsy usu...View AnswerShow Answer

The midbrain has a slender CSF-filled canal known as the

Correct AnswerverifiedShow Answer

If the dorsal root of a spinal nerve is severed,

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The cortex inferior to the lateral sulcus is the

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Effects produced by the parasympathetic branch of the autonomic nervous system include

Correct AnswerverifiedShow Answer

The only cranial nerve that is attached to the cerebrum is the

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The two cerebral hemispheres are separated by the

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Patients suffering from Bell's palsy usu...
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