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CN III--parasympathetics
N/A
7
Anatomy
Professional
10/17/2008

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Cards

Term
cell body of origin
Definition
Accessory oculomotor nucleus (Edinger-Wesphal nucleus)
Term
leave cranial cavity via:
Definition
superior orbital fissure
Term
follow:
Definition

inferior division of CN III

reaches CILIARY ganglion

 

C of COPS

Term
postganglionic fibers reach eye from ciliary ganglion via:
Definition
short ciliary nerves, branch of nasociliary (V1)
Term
innervate smooth muscle of:
Definition
1. sphincter pupillae--makes pupil smaller
2. ciliaris--accomodation (changes shape of lens for focus)
Term
fibers of short ciliary:
Definition
1. general sensory from eye (cell bodies in trigeminal ganglion)
2. postganglionic parasympathetic fibers from ciliary ganglion to 2 muscles (ciliaris and sphincter pupillae)
3. postganglionic sympathetic from superior cervical ganglion innervates the dilator pupillae
Term
fibers of long ciliary:
Definition
1. general sensory from eye (trigeminal ganglion)
2. postganglionic sympathetic fibers innervate dilator pupillae and superior tarsal muscles of levator palpebrae muscles (smooth muscle fibers in skeletal muscles) keeps eyes open for long periods of time
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