Parasympathetic Visceral Efferent Pathway Flashcards
1
Q
Which VE pathway is conveyed in C.N. III?
A
a parasympathetic motor pathway
2
Q
VE fibers conveyed in C.N. III orginate from which nucleus?
A
accessory oculomotor nucleus of Edinger/Westphal
3
Q
Identify the components of the parasympathetic efferent pathway of C.N. III beginning with the nucleus of origin and continuing to the target organs.
A
- accessory nucleus of Edinger/Westphal
- preganglionic parasympathetic efferent fibers
- oculomotor nerve
- ciliary ganglion synapse
- postganglionic parasympathetic efferent fibers
- short ciliary nerves
- sphincter pupillae and ciliaris muscles
- synapse
4
Q
What is the location of synapse for preganglionic parasympathetic efferent fibers of C.N. III?
A
ciliary ganglion
5
Q
Postganglionic parasympathetic efferent fibers of C.N. III are carried in which nerve?
A
short ciliary nerve
6
Q
Postganglionic parasympathetic efferent fibers of C.N. III synapse in what targets?
A
sphincter pupillae and ciliaris intrinsic eye muscles
