Neuro - memorize

Question 1

CN nuclei at midbrain

Answer 1

III, IV

Question 2

CN nuclei at pons

Answer 2

V, VI, VII, VIII

Question 3

CN nuclei at medulla

Answer 3

IX, X, XI, XII

Question 4

midline brainstem lesions involve which CN?

Answer 4

XII - medulla
VI - pons
III - midbrain

^derived from somatic motor column

Question 5

lateral brainstem lesions involve which CN?

Answer 5

IX, X, XI - medulla

VII, VIII, V - pons

Question 6

which vessels supply lateral medulla?

Answer 6

posterior inferior cerebellar a.

PICA

Question 7

posterior inferior cerebellar arteries originate from the ______

Answer 7

posterior inferior cerebellar arteries originate from the VERTEBRAL A.

Question 8

anterior inferior cerebellar arteries and the superior cerebellar arteries originate off the ______

Answer 8

anterior inferior cerebellar arteries and the superior cerebellar arteries originate off the BASILAR A.

Question 9

perforating a. supply which part of brainstem?

Answer 9

medial brainstem

R and L perforators for each level of the brainstem

Question 10

medial vs. lateral medulla blood supply

Answer 10

medial: paramedian perforating br.

lateral: posterior inferior cerebellar a.
PICA

Question 11

inferior cerebellar peduncle

Answer 11

inputs from medulla –> cerebellum

Question 12

middle cerebellar peduncle

Answer 12

inputs from pons –> cerebellum

Question 13

superior cerebellar peduncle

Answer 13

output from cerebellum –> contralateral thalamus (VL) to reach contralateral motor cortex