Questions

Question 1

15. All the following are thalamic relay nuclei except
the
a. anterior nucleus.
b. dorsomedial nucleus (DM).
c. medial geniculate nucleus.
d. ventral lateral nucleus (VL).
e. ventral posteromedial nucleus (VPM).

Answer 1

B) dorsomedial Nucleus

Question 2

21. Right hemiballismus would result from damage
to the
a. right subthalamic nucleus.
b. left subthalamic nucleus.
c. right globus pallidus.
d. left globus pallidus.
e. none of the above.

Answer 2

b) left sub thalamic nucleus

Question 3

22. A 37-year-old neuroanatomist and hat
    designer was involved in a serious collision with
    a large fish. When you examine him (the
    neuroanatomist, that is—the fish was
    unharmed) you notice that when you lightly
    touch his left cornea, only his left eye blinks;
    when you touch his right cornea, again only
    his left eye blinks. Damage in which of the
    following locations would best account for these
    findings?
    a. the right oculomotor nucleus, sparing the
    trigeminal and facial motor and sensory nuclei.
    b. the vicinity of the right abducens nucleus,
    affecting the internal genu of the facial nerve.
    c. the right spinal trigeminal tract, sparing all
    other systems.
    d. the left corticobulbar tract, sparing the
    oculomotor nucleus and the trigeminal and
    facial sensory and motor nuclei.

Answer 3

b)

Question 4

23. The caudal pons receives some of its blood supply
from the
a. vertebral artery.
b. posterior inferior cerebellar artery.
c. anterior inferior cerebellar artery.
d. superior cerebellar artery.
e. posterior cerebral artery.

Answer 4

C) anterior inferior

Question 5

24. Hair cells in a semicircular canal
    a. have receptor potentials in opposite directions
    at the beginning and end of a rotation.
    b. continue responding throughout a rotation.
    c. are stimulated best by linear acceleration.
    d. have stereocilia that are bathed in perilymph.

Answer 5

A)

Question 6

25. Increased stretch reflexes in left lower extremity
    extensors would result from damage to the
    a. left cerebellar hemisphere.
    b. dopaminergic neurons of the right substantia
    nigra.
    c. right frontal lobe (areas 4 and 6).
    d. either b or c.
    e. any of the above.

Answer 6

C)

Question 7

26. Climbing fibers in the left half of the cerebellum
originate in the
a. left pontine nuclei.
b. right pontine nuclei.
c. left inferior olivary nucleus.
d. right inferior olivary nucleus.

Answer 7

d)

Question 8

27. Most efferents from the putamen project to the
    a. subthalamic nucleus.
    b. caudate nucleus.
    c. VA/VL nuclei of the thalamus.
    d. globus pallidus.
    e. amygdala.

Answer 8

d)globus pallidus

Question 9

28. The thalamic nucleus most closely associated with
    parietal-temporal-occipital association cortex is
    a. VPL/VPM.
    b. the dorsomedial nucleus.
    c. the pulvinar.
    d. the anterior nucleus.
    e. the centromedian nucleus.

Answer 9

c) pulvinar

Question 10

30. Normally present real spaces within the cranium
include
a. subarachnoid space.
b. subdural space.
c. epidural space.
d. a and b.
e. none of the above.

Answer 10

a)

Question 11

31. Noncommunicating hydrocephalus would be
    caused by obstruction of
    a. all three apertures of the fourth ventricle.
    b. one interventricular foramen.
    c. the cerebral aqueduct.
    d. any of the above.
    e. none of the above.

Answer 11

d

Question 12

32. A lipid-insoluble dye injected into a lateral
    ventricle would do all of the following except
    a. cross the ependymal lining of the ventricle and
    diffuse between CNS neurons.
    b. move through the ventricular system, out into
    subarachnoid space, and across arachnoid villi,
    finally entering venous blood.
    c. diffuse across the epithelial lining of the
    choroid plexus and enter choroidal capillaries.
    d. stop at tight junctions between the
    endothelial cells of cerebral capillaries.
    e. stop at tight junctions between arachnoid
    cells.

Answer 12

c)

Question 13

35. A 37-year-old goldfish taster comes to your office
    with a medially deviated right eye, weakness of
    the entire right side of his face, and inability to
    move either eye past midposition when he tries
    to look to the right. A single lesion site that
    would account for these findings is
    a. left frontal cortex, including primary motor
    cortex and frontal eye fields.
    b. right frontal cortex, including primary motor
    cortex and frontal eye fields.
    c. right lateral brainstem at the pontomedullary
    junction.
    d. right medial brainstem in the caudal pons.

Answer 13

d)