CH 12 - CNS - Practice Exam

Question 1

The white matter of the spinal cord contains ___.

a.) soma that have both myelinated and unmyelinated nerve fibers
b.) myelinated nerve fibers only
c.) myelinated and unmyelinated nerve fibers
d.) unmyelinated nerve fibers only

Answer 1

c.) myelinated and unmyelinated nerve fibers

Question 2

TRUE/FALSE:

The left cerebral hemisphere is usually dominant.

Answer 2

True

Question 3

Which of the following is NOT a function of the CSF?

a.) protection from blows
b.) nourishment of the brain
c.) reduction of brain weight
d.) initiation of some nerve impulses

Answer 3

d.) initiation of some nerve impulses

Question 4

An individual who could trace a picture of a bicycle with his finger but could NOT recognize it as a bicycle is most likely to have sustained damage to the ____.

a.) calcarine cortex
b.) visual association area
c.) lateral geniculate body
d.) primary visual area

Answer 4

b.) visual association area

Question 5

What cells line the ventricles of the brain?

a.) epithelial cells
b.) ependymal cells
c.) neurons
d.) astrocytes

Answer 5

b.) ependymal cells

Question 6

TRUE/FALSE:

The limbic system acts as our emotional, or affective, brain

Answer 6

True

Question 7

The brain stem consists of the ____>

a.) pons, medulla, cerebellum, and midbrain
b.) midbrain, medulla, and pons
c.) cerebrum, pons, midbrain, and medulla
d.) midbrain only

Answer 7

b.) midbrain, medulla, and pons

Question 8

The primary auditory cortex is located in the ____.

a.) temporal lobe
b.) frontal lobe
c.) parietal lobe
d.) prefrontal lobe

Answer 8

a.) temporal lobe

Question 9

White matter (myelinated fibers) is found in all of the following locations EXCEPT the ______.

a.) cerebral cortex
b.) outer portion of the spinal cord
c.) corticospinal tracts
d.) corpus callosum

Answer 9

a.) cerebral cortex

Question 10

TRUE/FALSE:

Most of the ascending and descending pathways to and from the brain cross over from one side of the body to the other.

Answer 10

TRUE

Question 11

The subarachnoid space lies between what two layers of meninges?

a.) dura and epidura
b.) arachnoid and pia
c.) arachnoid and dura
d.) arachnoid and epidura

Answer 11

b.) arachnoid and pia

Question 12

The vital centers for the control of heart rate, respiration, and blood pressure are located in the ____.

a.) pons
b.) cerebrum
c.) midbrain
d.) medulla

Answer 12

d.) medulla

Question 13

Ridges of tissue on the surface of the cerebral hemispheres are called ____>

a.) fissures
b.) gyri
c.) sulci
d.) ganglia

Answer 13

b.) gyri

Question 14

TRUE/FALSE:

Cerebrospinal fluid circulates within the ventricles of the brain and in the subarachnoid space outside the brain.

Answer 14

True

Question 15

Which of the following would you NOT find in normal cerebrospinal fluid?

a.) protein
b.) potassium
c.) red blood cells
d.) glucose

Answer 15

c.) red blood cells

Question 16

The hypothalamus _____.

a.) mediates sensations
b.) has the Pulvinar body as part of its structure
c.) is an important auditory and visual relay center
d.) is the thermostat of the body because it regulates temperature

Answer 16

d.) is the thermostat of the body because it regulates temperature

Question 17

The two terms for the massive motor tracts serving voluntary movements are _____>

a.) segmental and nigrostriatal
b.) supplementary and cerebellar-pontine
c.) pyramidal and corticospinal
d.) extrapyramidal and rubrospinal

Answer 17

c.) pyramidal and corticospinal

Question 18

TRUE/FALSE:

The adult spinal cord and between L1 and L2?

Answer 18

True