Brainstorm Exam 2- Wilson

Question 1

Midbrain

Answer 1

mickey mouse

with superior colliculi

Question 2

Open medulla

Answer 2

has the opening of the 4th ventricle

Question 3

Closed Medulla

Answer 3

lower (caudal) medulla

• very pronounced olive
• closing of the 4th ventricle

Question 4

Location of hypoglossal nucleus

Answer 4

??

Question 5

Location of motor nucleus of V (trigeminal motor nucleus)

Answer 5

??

Question 6

Location of abducens nucleus

Answer 6

??

Question 7

Location of facial nucleus and internal genu

Answer 7

??

Question 8

Location of oculomotor nuclei

Answer 8

??

Question 9

Structure related to Fine touch and Position from the body

Answer 9

dorsal horn and ventral horn
dorsal and ventral roots 
cuneate fasciculus
cuneate nucleus 
cuneate tubercle 
dorsal spinocerebellar tract 
gracile fasciculus 
gracile nucleus 
gracile tubercle 
interna; arcuate fibers 
medial lemniscus
VPL
Postcentral Gyrus

Question 10

Structures related to pain and temperature

Answer 10

Marginal Zone
Nucleus Proprius
Spinothalamic tract

Question 11

Fine Touch and Position from Head

Answer 11

Chief sensory Nucleus of V 
Trigeminal Nerve 
Trigeminothalamic tract 
VPM 
Postcentral Gyrus

Question 12

Afferents enter the Zone of Lissauer go to the spinal cord 2 levels up

Answer 12

Wilson Spinal cord lecture from last two units ????

if cyst is on T10 there will be loss of sensation at T 12 (because you go up to 2 spinal cord levels)

Question 13

cervical to lumbar

Answer 13

no cervical axons coming or going

amount of white matter decreases

Question 14

Marginal zone

Answer 14

major area for second order neurons to synapse onto

Question 15

Nucleus Proprius

Answer 15

second order cell bodies forming the spinothalamic tract

Question 16

Rexed Lamina IV

Answer 16

receive both visceral and somatic pain fibers

REFERRED PAIN !!! (Gondre-Lewis)

Question 17

Ventral white commissure

Answer 17

-where decussation occurs
central canal is dorsal to this
-syringomyelia: cyst forms in your spinal cord

pt presents with loss of the a single dermatome of pain and temp where is the lesion; symptoms will be bilateral

Question 18

Gracile Fasciulus

Answer 18

symptoms are ipsilateral

lesion at T10, we’re severing axons at the lesion and below

Question 19

Spinothalamic Tract

Answer 19

contralateral symptoms

• lateral of brainstem
• mixed in with hypothalamic axons involved with descending sympathetic systems

when you have a stroke in the spinothalamic tract: brainstem lesion Horner’s syndrome mixed with loss of pain and temp–> brainstem lesion

Question 20

Cuneate gracilis

Answer 20

get axons from levels T5, T6 you will see formation of cuneate gracilis

Question 21

hematopophic????

Answer 21

map of the body

hematopophic

Question 22

????

Answer 22

Clarke’s column is located here

Question 23

Nucleus Ambiguus

Answer 23

motor fibers for vagus, glossopharyngeal

problems with speech and swallowing with stroke

Question 24

Medial Lemniscus

Answer 24

goes from medial to lateral

as you go up the brainstem

Question 25

Lumbar spinal cord section

Answer 25

• no lateral horn
• lateral motor group in the ventral horn is large
• very little white matter relative to gray matter

-as you go from