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36 Cards in this Set
- Front
- Back
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how does cavernous sinus drain
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via s/i petrosal into sigmoid into IJV
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parotid para innerv
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V3 auriculo carries 9 para to parotid (via lessr petrosal and otic ganglion_
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striatum=
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caudate+putamen
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branches vagus
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-i laryngeal (w s. laryngeal a thru cricothyroid mem)
-ext laryngeal (w s thyroid a) -recurrent (w i thyroid off thyrocervical) |
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lacrimal innerv
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zygo of V2 carries 7 to lacrimal (via grtr petrosal t Vidian/pterygoid gang)
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CN7 involved in what auto innerv
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lacrimal (via V2 zygo)
chorda tympani 1)submand/subling via V3 lingual 2) taste ant 2/3 via V3 lingual |
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ex multipolar neurons
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MOST, incl motor neurons, ANS, interneurons, pyramidal of ctx, Purkije of cb ctx
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reflex loop
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mscl stretch stretches Ia afferent, stim alpha motor, cause reflex extrafusal cxn
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role of CN9
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Sensory: sensory and taste P 1/3 tongue, sensory oropharynx (gag),
Motor: stylopharyngeus Auto/glands: herrings to carotid, para to parotid via V3 auriculotemp |
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branches V 1
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frontal, nasociliary, lacrimal
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role CN III
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all eye muscles, lev palpebrae, carries para to eye via short ciliary (miosis and accomadation)
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how mydriasis
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symp from carotid plexus carried via nasociliary (branch V1) long ciliary
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astrocyte markers (3)
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GFAP, glutamine synthetase, monoclonocal Ab A2B5
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eye para
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inferior CNIII carries para short ciliary causing miosis, accomodation
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vomitting
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chemoR zone on floor 4th v activates vomitting center in medulla (lateral reticular formation)
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embryo of sensory neurons? motor neurons
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sensory=alar plate
motor=basal plate |
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fxn dominant hemi (4)
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language, calculation, analysis, praxis (parietal)
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branches of V 3
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buccal, auriculotemporal, i. alveolar, lingual
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chromatolysis
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retrograde degen in CNS and PNS
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mallerian degen
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anterograde degen, axons and myelin sheaths disappear with prolifer Schwann, see in PNS and CNS
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intermediolateral cell column, fxn
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C8-L3 mediate entire symp innervation
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foramen magnum
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spinal roots XI, brain stem, vertebral a
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role of V1 branches
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branches=frontal, nasociliary, lacrimal
Sensory: nasociliary cornea Auto/glands: nasociliary carries symp causing mydriasis |
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role V3 branches
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branches=buccal, auriculotemporal, i alveolar, lingual
Sensory: buccal (cheek), auriculotemp (upper 1/2 ear) motor: mastication, mylohyoid, a digastric, 2 tensors carries: auriculo carries 9 para to parotid, lingual carries 7 chorda tymp to submand/subling |
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"lentiform="
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put and GP
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gray commun rami
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unmyelinated postgang symp found at all levels SC
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white commun rami
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myelinated pregang symp at T1-L3
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complex BG with NT
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premotor + (gluta) putamen,
putamen - (GABAb, enkephalin)GPex GPex - (GABA&P) STN STN + (gluta) GPi GPi - (GABA) VL VL + (gluta) premotor |
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CN9 role in auto innerv
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Herrings to carotid, parasymp to parotid (via V3 auriculotemp)
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role astrocytes
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(not neuronal)
-foot processes -metab of GABA, serotonin, gluta -buffer K |
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bipolar neurons, ex
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CN8, CN1, retina
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role of V2 branches
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branches=infraorbital, zygomatic
Sensory: infraorbital-nasopharynx, upper teeth Auto/glands: zygomatic carries 7 to lacrimal |
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corpus striatum=
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lentiform+caudate
lentiform=put+GP |
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Ib in reflex
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(golgi tnedon organ)senses tension and provides inhib feedback to alpha motor neuron
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fxn prefrontal ctx
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lateral (dorsal)=working mem, exec fxn
medial/orbital=mood and emotion (rel phenomen of gage) |
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sigmoid sinus
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receives transverse sinus (deep veins via galen + i. sagittal and strt sinus, and bridging via s. sagittal sinus)
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