Ear Flashcards
1
Q
external ear
A
Simple apparatus for collection of sound waves
Auricle - pinna
External auditory canal
Tympanic membrane
2
Q
Middle ear
A
located in the temporal bone and houses the auditory ossicles
Internals of the eardrum and external to oval window inner ear
six sided box
-Lateral or membranous wall
-Roof or tegmental wall
-Floor or jugular wall
-medial or labyrintheric wall
-anterior or carotid wall
-Posterior or mastoid wall
3
Q
Auditory ossicles
A
Malleus (hammer)
incus (anvil)
stapes (stirrup)
transmit sounds from the air to the fluid filled labyrinth (cochlea)
Absence of the auditory ossicles would constitute a moderate to severe hearing loss