Brainstorm Exam 2- Wilson Flashcards
Midbrain
mickey mouse
with superior colliculi
Open medulla
has the opening of the 4th ventricle
Closed Medulla
lower (caudal) medulla
- very pronounced olive
- closing of the 4th ventricle
Location of hypoglossal nucleus
??
Location of motor nucleus of V (trigeminal motor nucleus)
??
Location of abducens nucleus
??
Location of facial nucleus and internal genu
??
Location of oculomotor nuclei
??
Structure related to Fine touch and Position from the body
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
Structures related to pain and temperature
Marginal Zone
Nucleus Proprius
Spinothalamic tract
Fine Touch and Position from Head
Chief sensory Nucleus of V Trigeminal Nerve Trigeminothalamic tract VPM Postcentral Gyrus
Afferents enter the Zone of Lissauer go to the spinal cord 2 levels up
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)
cervical to lumbar
no cervical axons coming or going
amount of white matter decreases
Marginal zone
major area for second order neurons to synapse onto
Nucleus Proprius
second order cell bodies forming the spinothalamic tract
Rexed Lamina IV
receive both visceral and somatic pain fibers
REFERRED PAIN !!! (Gondre-Lewis)
Ventral white commissure
-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
Gracile Fasciulus
symptoms are ipsilateral
lesion at T10, we’re severing axons at the lesion and below
Spinothalamic Tract
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
Cuneate gracilis
get axons from levels T5, T6 you will see formation of cuneate gracilis
hematopophic????
map of the body
hematopophic
????
Clarke’s column is located here
Nucleus Ambiguus
motor fibers for vagus, glossopharyngeal
problems with speech and swallowing with stroke
Medial Lemniscus
goes from medial to lateral
as you go up the brainstem
