Ear Flashcards
1
Q
A
2
Q
Mucosa of middle ear is innervated by:
A
- CN IX; general sensory
- Forms tympanic plexus on promontory
–Also supplies inner surface of tympanic membrane
3
Q
Parasympathetics to parotid sequence
A
Glossopharyngeal N (CN IX)
- preganglionic parasymp.
- synapse at otic ganglion
4
Q
Bones of middle ear develop from
A
Develop from 1st arch (jaw) and 2nd arch (hyoid)
5
Q
What is chorda tempani
A
6
Q
Tensor tympani location and innervation
A
7
Q
Stapedius location and innervation
A
8
Q
Contents of bony vs membranous labyrinths
A
Bony: Perilymph, Drains to internal jugular V via cochlear aqueduct
Membranous: Endolymph, Drains to subarachnoid space via vestibular aqueduct
9
Q
A
10
Q
A
11
Q
A
12
Q
Auricle innervation
A
