Term
|
Definition
external auditory meatus
from pinna/auricle to tympanic membrane
elastic cartilage wall
lined by sparsely haired skin
sebaceous and apocrine (ceruminous) glands |
|
|
Term
|
Definition
|
|
Term
|
Definition
separates external ear canal from middle ear
outer cuticular epithelial layer
middle fibrous layer
inner mucus (epithelial) layer - connects w middle ear epithelium
|
|
|
Term
|
Definition
within petrous temporal bone
lined by simple squamous to cuboidal epithelium
near eustachian tubes: columnar with cilia |
|
|
Term
| 3 bones of petrous temporal bone |
|
Definition
|
|
Term
|
Definition
branches off the tympanic bulla and extends to nasopharynx
|
|
|
Term
|
Definition
tympanic membrane movement causes bones of inner ear t move, amplifies sound waves and transmits to inner ear
|
|
|
Term
|
Definition
blind ended structure that begins at oval window (in contact w stapes)
membranous labyrinth
endolymph in membranes, perilymph bw membrane and bone |
|
|
Term
|
Definition
smaller emergency exit in inner ear
oval window is entrance |
|
|
Term
|
Definition
utricle and saccule
contain maculae sensory |
|
|
Term
|
Definition
sensory hairs in gel material with otoliths
send signals to brain about head movement |
|
|
Term
|
Definition
3 of them
filled with endolymph
ampulla at ends connect to utricle
crista ampularis of ampulla similar function to maculae |
|
|
Term
|
Definition
| conical, spiral shaped space in the petrous temporal bone |
|
|
Term
|
Definition
bone surrounding semi circular canals
space inside: scala media
dorsal: vestibular membrane
ventral: basilar membrane |
|
|
Term
|
Definition
where hearing happens
on the basilar membrane
auditory receptor cells
nerve fibers to spiral ganglion to brain |
|
|
Term
| travel of sound through ear |
|
Definition
sound waves
external ear canal
tympanic membrane
middle ear bones
oval window
perilymph in osseous labyrinth
vestibular membrane
endolymph of scala media
basilar membrane
Organ of Corti
spiral ganglion
brain |
|
|
