Question 1

Hemisphere lateralization refers to the

Accepted Answer

A)  difficulty in assigning a precise function to a specific region of the cortex.
B)  generalization that both cerebral hemispheres receive their sensory information from and project motor commands to the opposite side of the body.
C)  separation of the various lobes of the brain from each other.
D)  crisscrossing of information between the two hemispheres.
E)  functional differences between the right and left hemispheres.F) B) and C)
G) A) and D)

Question 2

The primary somatosensory cortex is part of the

Accepted Answer

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

Question 3

Human intelligence is most closely related to the

Accepted Answer

A)  size of the brain.
B)  weight of the brain.
C)  number of neurons.
D)  number of active synapses.
E)  amount of cerebrospinal fluid.F) A) and D)
G) C) and E)

Question 4

Bell palsy is a condition characterized by the paralysis of facial muscles,eyelid droop,and sagging at the corners of the mouth.What nerve is affected in this condition?

Accepted Answer

A)  Olfactory
B)  Trigeminal
C)  Facial
D)  Accessory
E)  HypoglossalF) B) and C)
G) C) and D)

Question 5

The cranial nerve that innervates smooth muscle and glands of the heart,lungs,larynx,trachea,and most abdominal organs is the ___________ nerve.

Accepted Answer

A)  facial
B)  trigeminal
C)  vagus
D)  accessory
E)  hypoglossalF) C) and D)
G) D) and E) C

Question 6

Which cranial nerve is composed of only motor fibers?

Accepted Answer

A)  VI
B)  VIII
C)  IX
D)  V
E)  IF) A) and B)
G) B) and E)

Question 7

Cerebrospinal fluid is identical to blood plasma.

Accepted Answer

A) True 
 B)False

Question 8

Paired,irregular masses of gray matter buried deep within the central white matter in the basal region of the cerebral hemispheres,inferior to the floor of the lateral ventricle,are the

Accepted Answer

A)  cerebral nuclei.
B)  corpus callosi.
C)  inferior colliculi.
D)  interthalamic adhesions.
E)  ventricular connections.F) A) and D)
G) None of the above

Question 9

This portion of the brain secretes the hormone melatonin,which helps to regulate the body's circadian rhythm.

Accepted Answer

A)  Habenular nucleus
B)  Anterior nucleus
C)  Pineal gland
D)  Mammillary body
E)  Paraventricular nucleusF) All of the above
G) B) and D)

Question 10

List these events in the correct order for CSF flow in the CNS. 
A: CSF flows into the arachnoid villi
B: CSF enters the blood
C: CSF flows through the cerebral aqueduct to the fourth ventricle
D: CSF flows into the subarachnoid space
E: CSF is produced by the choroid plexus

Accepted Answer

A)  a,b,c,e,d
B)  e,a,b,c,d
C)  c,d,a,e,b
D)  e,c,d,a,b
E)  e,d,a,b,cF) A) and C)
G) B) and D) D

Question 11

The primary gustatory cortex is part of the

Accepted Answer

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

Question 12

Which part of the brain filters sensory information and forwards only a fraction of it to the cerebral cortex?

Accepted Answer

A)  Hypothalamus
B)  Epithalamus
C)  Thalamus
D)  Pineal body
E)  PonsF) C) and D)
G) D) and E) C

Question 13

The amount of CSF within the brain at any given moment

Accepted Answer

A)  is about 500 ml.
B)  is somewhere around 1,000 ml.
C)  ranges between 100 ml and 160 ml.
D)  is about 50-60 ml.
E)  ranges between 300 ml and 420 ml.F) A) and E)
G) C) and E)

Question 14

This nucleus both excites and inhibits the activities of the thalamus to control and adjust muscle tone.

Accepted Answer

A)  Amygdaloid body
B)  Caudate nucleus
C)  Putamen
D)  Globus pallidus
E)  ClaustrumF) C) and E)
G) A) and B)

Question 15

Arrange the five secondary vesicles in the correct anterior to posterior order. 
A: Diencephalon
B: Myelencephalon
C: Telencephalon
D: Metencephalon
E: Mesencephalon

Accepted Answer

A)  b,a,c,d,e
B)  a,b,c,d,e
C)  b,c,a,e,d
D)  c,d,e,a,b
E)  c,a,e,d,bF) C) and D)
G) B) and C)

Question 16

This portion of the brain forms part of the roof of the diencephalon and covers the third ventricle.Its posterior portion houses the pineal gland and the habenular nuclei.

Accepted Answer

A)  Epithalamus
B)  Thalamus
C)  Hypothalamus
D)  Cerebellum
E)  InfundibulumF) B) and D)
G) B) and C)

Question 17

The blood-brain barrier is made up of

Accepted Answer

A)  microglial extensions and capillary endothelial cells.
B)  ependymal cells and venous blood vessels.
C)  astrocyte perivascular feet and capillary endothelial cells.
D)  astrocyte extensions and dural sinuses.
E)  astrocyte perivascular feet and the falx cerebri.F) C) and D)
G) B) and E)

Question 18

A person with damage to the premotor cortex area concerned with coordinating eye movements

Accepted Answer

A)  can read but cannot understand the words.
B)  cannot read or understand the words.
C)  can understand the words but cannot follow the lines on the page.
D)  cannot form proper images of words.
E)  cannot discriminate between letters and words.F) A) and D)
G) A) and E)

Question 19

A patient visits her doctor and explains that since being hit on the cheek with a hockey puck she has been suffering from dry eyes and a dry mouth.It's apparent to the doctor that,since both lacrimal secretion and salivary secretion are affected,there may be damage to the ____________ nerve.

Accepted Answer

A)  trigeminal
B)  hypoglossal
C)  glossopharyngeal
D)  abducens
E)  facialF) A) and E)
G) B) and E)

Question 20

Most of the gyri and sulci of the human brain develop very early in the fetal period.

Accepted Answer

A) True 
 B)False

Exam 15: Brain and Cranial Nerves

Hemisphere lateralization refers to the

Correct AnswerverifiedShow Answer

The primary somatosensory cortex is part of the

Correct AnswerverifiedShow Answer

Human intelligence is most closely related to the

Correct AnswerverifiedShow Answer

Bell palsy is a condition characterized by the paralysis of facial muscles,eyelid droop,and sagging at the corners of the mouth.What nerve is affected in this condition?

Correct AnswerverifiedShow Answer

The cranial nerve that innervates smooth muscle and glands of the heart,lungs,larynx,trachea,and most abdominal organs is the ___________ nerve.

Correct AnswerverifiedC

Which cranial nerve is composed of only motor fibers?

Correct AnswerverifiedShow Answer

Cerebrospinal fluid is identical to blood plasma.

Correct AnswerverifiedShow Answer

Paired,irregular masses of gray matter buried deep within the central white matter in the basal region of the cerebral hemispheres,inferior to the floor of the lateral ventricle,are the

Correct AnswerverifiedShow Answer

This portion of the brain secretes the hormone melatonin,which helps to regulate the body's circadian rhythm.

Correct AnswerverifiedShow Answer

List these events in the correct order for CSF flow in the CNS. A: CSF flows into the arachnoid villi B: CSF enters the blood C: CSF flows through the cerebral aqueduct to the fourth ventricle D: CSF flows into the subarachnoid space E: CSF is produced by the choroid plexus

Correct AnswerverifiedD

The primary gustatory cortex is part of the

Correct AnswerverifiedShow Answer

Which part of the brain filters sensory information and forwards only a fraction of it to the cerebral cortex?

Correct AnswerverifiedC

The amount of CSF within the brain at any given moment

Correct AnswerverifiedShow Answer

This nucleus both excites and inhibits the activities of the thalamus to control and adjust muscle tone.

Correct AnswerverifiedShow Answer

Arrange the five secondary vesicles in the correct anterior to posterior order. A: Diencephalon B: Myelencephalon C: Telencephalon D: Metencephalon E: Mesencephalon

Correct AnswerverifiedShow Answer

This portion of the brain forms part of the roof of the diencephalon and covers the third ventricle.Its posterior portion houses the pineal gland and the habenular nuclei.

Correct AnswerverifiedShow Answer

The blood-brain barrier is made up of

Correct AnswerverifiedShow Answer

A person with damage to the premotor cortex area concerned with coordinating eye movements

Correct AnswerverifiedShow Answer

A patient visits her doctor and explains that since being hit on the cheek with a hockey puck she has been suffering from dry eyes and a dry mouth.It's apparent to the doctor that,since both lacrimal secretion and salivary secretion are affected,there may be damage to the ____________ nerve.

Correct AnswerverifiedShow Answer

Most of the gyri and sulci of the human brain develop very early in the fetal period.

Correct AnswerverifiedShow Answer

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D

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