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Ear
eary
6
Agriculture
4th Grade
06/26/2010

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Cards

Term
key features of Lateral wall of the middle ear?
Definition
-tympanic membrane,
-malleus,
-chorda tympani n,
-tensor tympani tendon attached to manubrium
Term
where does the chorda tympani n leave the ear?
Definition
petrotympanic fissure
Term
key features of posterior wall of middle ear?
Definition
-opening (aditus) to mastoid antrum
-tendon of stapedius m attached to -pyramidal eminence
-prominence of facial canal
-chorda tympani emerges from facial cana
Term
key features of medial wall of the middle ear?
Definition
-tympanic plexus from tympanic br. of IX forms over promontory
-round window is below and behind promontory
-stapes footplate and oval window above and behind promontory
-tensor tympani tendon emerging above promontory
-lesser petrosal n leaving tympanic plexus
Term
Ear bone articulations are typical ________ joints with corresponding facets
Definition
synovial
Term
key features of anterior wall of the middle ear?
Definition
-pharyngotympanic tube dominates
-greater petrosal n. (from geniculate ganglion) and lesser petrossal n (from tympanic plexus) are above and parallel to tensor tympani m
-tensor tympani m
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