Exam 1

Question 1

The forebrain is made up of what structures

Answer 1

Cerebral hemispheres, the dienephalon

Question 2

Majority of neurons in the central nervous system are:

Answer 2

Multipolar

Question 3

Cells of the nervous system that play a role in injury and act like macrophages of the CNS are:

Answer 3

Microglia

Question 4

Cells that play a direct role in regulation blood blow to active areas of the CNS are:

Answer 4

Astrocytes

Question 5

Cells that are responsible for electrical insulation in the periphery are

Answer 5

Schwann Cells

Question 6

The inability of a neuron to send info from its axon terminal to the nucleus would imply a problem with what protein?

Answer 6

Dynein

Question 7

A stillborn infant exhibited severe facial abnormalities and upon autopsy it was discovered that the brain lacked significant gyri and sulci. At this point, the most likely diagnosis is

Answer 7

Holoprosencephaly

Question 8

During the second trimester of a pregnant 24-year-old, abnormally high levels of alpha-fetoprotein are found in her blood. Such elevated levels may be indicative of what fetal abnormality?

Answer 8

Neural tube defect

Question 9

Failure of the metanecephalon to develp correctly will have the greatest effect on

Answer 9

Motor functions

Question 10

Failure of proper neural crest migration will have the greatest impact on

Answer 10

Myelination in the PNS

Question 11

Failure of the rhombic lips to form properly will most likely lead to problems with

Answer 11

Coordination

Question 12

Several lobes of the adult cerebrum have opercular parts; the opercular cover the

Answer 12

Insula

Question 13

An older woman slips on the ice and snacks the back of her head on the sidewalk. What function/characteristic is most likely to be compromised from an injury to the posterior aspect of the cerebrum?

Answer 13

Vision

Question 14

A hemisection lesion of the thoracic spinal cord(Brown-Sequard) produces the following deficit

Answer 14

Ipsilateral loss of volunary motor acticity below the level of the lesion

Question 15

Top of brain
Bottom of brain
Front of brain
Back of brain
Terms (rostal, etc.)

Answer 15

Top - Dorsal
Bottom- Ventral
Front - Rostral
Back - Caudal

Question 16

An older patient with a cerebellopontine angle tumor is most likely to have deficits associated with which cranial nerve?

Answer 16

VII

Question 17

An individual is seen at the medical clinic with the chief complant of a headache subsequent to a fall, which left her unconscious for an unknown period of time. Since the fall, the patient reports progressive weakness and tingling over one side of her body. You belueve it to be an epidural hematoma, likely caused by damage to:

Answer 17

The middle meningeal artery

Question 18

A young motorist involved in an auto accident walks away, seemingly unharmed after a 40-mph head on collision. Weakness and tingling began 2 weeks after the accident, leading the individual to see treatment at a medical clinic. CT reveals a massive crescent shaped hematoma. The most likely diagnosis is

Answer 18

Subdural hematoma

Question 19

Subsequent to a subdural hematoma, a patient experiences difficulty with voluntary eye movement, that is, when at rest the right eye looks “down and out,” as well as experiencing motor problems over the left side of the body.You suspect that the subdural hematoma caused tentorial herniation which has resulted in the compression of the

Answer 19

Right side of the midbrain

Question 20

Sensory innervation of the infratentorial compartment is provided primarily by

Answer 20

CN X

Question 21

A space-occupying lesion occupying the infrentorial compartment would have the greatest effect on

Answer 21

Balance and equilibrium

Question 22

Most CSF is resobred from the subarachnoid space into the

Answer 22

Superior sagittal sinus

Question 23

The colsure of the rostral neuropore of the embryo is represented by the ______ in the adult

Answer 23

Lamina terminalis

Question 24

Communicating (nonobstructive) hydrocephalus may be caused by the inflammation of the

Answer 24

Arachnoid villi

Question 25

One source of extrachoroidal CSF production is the

Answer 25

Ependymal cells

Question 26

Which of the following areas does not contain choroid plexus

Answer 26

Infundibular recess of the third ventricle

Question 27

Frontal lobe function

Answer 27

Initiation of voluntary movments
production of written and spoken language
executive function

Question 28

Parietal lobe functions

Answer 28

processing of tactile and proprioceptive info
language comprehension
spatial orientation and directing attention

Question 29

Temporal lobe functions

Answer 29

Processing auditory info
language comprehension
comprehension of visual info
learning and memory

Question 30

Limbic lobe functions

Answer 30

emotional responses
drive-relation behavior
memory

Question 31

Occipital lobe functions

Answer 31

processing of visual info

Question 32

CSF functions

Answer 32

Buoyancy effect
* Spatial buffering
* Protection
Regulate composition
of extracellular fluid of
CNS

Question 33

Subdural
hematoma cause

Answer 33

Tearing of
vein as
enters
sinuses

Question 34

Subarachnoid
hemorrage cause

Answer 34

Rupture of cerebral
artery or vein

Question 35

Epidural
hematoma cause

Answer 35

Tearing of
menigeal
arteries