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LOM Ch 17 Sense Organs Set 8
Language of Medicine, 9th Edition, Davi-Ellen Chabner Sense Organs
30
Medical
Professional
07/04/2010

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Term
OS
Definition
abbreviation for left eye
Term
OU
Definition
abbreviation for both eyes
Term
pupils equal, round, reactive to light and accommodation
Definition
What does PERRLA stand for?
Term
primary open-angle glaucoma
Definition
What does POAG stand for?
Term
photorefractive keratectomy
Definition
What does PRK stand for?
Term
PRK
Definition
a laser beam flattens the cornea to correct myopia
Term
visual acuity
Definition
What does VA stand for?
Term
visual field
Definition
What does VF stand for?
Term
pinna
Definition
another name for auricle
Term
auricle
Definition
projecting part of the ear that sound waves enter
Term
external auditory meatus
Definition
another name for auditory canal
Term
typanic membrane
Definition
another name for eardrum
Term
eardrum
Definition
membrane between the outer and middle ear, which vibrates when sound waves hit it
Term
ossicles
Definition
three small bones that are moved when the eardrum vibrates, conducting sound waves through the middle ear to the oval window
Term
b, c, a
Definition

Put in order of their vibration:

a) stapes

b) malleus

c) incus

Term
oval window
Definition
division that separates middle ear from inner ear, touched by the stapes
Term
auditory tube
Definition
another name for eustachian tube
Term
eustachian tube
Definition
canal leading from the middle ear to the pharynx, which opens when you swallow--helps to maintain balance of atmospheri and middle ear pressure
Term
labyrinth
Definition
another name for the inner ear
Term
cochlea
Definition
part of the labyrinth that leads from the oval window, which contains special auditory liquids through which vibrations travel
Term
perilymph, endolymph
Definition
the two special auditory liquids in the cochlea that help vibrations travel
Term
organ of Corti
Definition
a sensitive auditory receptor in the cochlea, which contains tiny hair cellsthat receive vibrations from the auditory liquids and relay the sound waves to auditory nerve fibers
Term
vestibule
Definition
connects the cochlea to tree semicircular canals
Term
semicircular canals
Definition
containing two membranous sacs that contain endolymph and hair cells, which respond to the movement of the head
Term
saccule, utricle
Definition
The two membranoussacs in the semicircular canal
Term
d, b, f, c, e, a, g, h, j, i, k
Definition

Trace the pathway of sound:

a) stapes

b) exernal auditory canal

c) malleus

d) pinna

e) incus

f) tympanic membrane

g) oval window

h) cochlea

i) auditory nerve fibers

j) auditory liquids and receptors in organ of Corti

k) cerebral cortex

Term
auditory canal
Definition
channel that leads from the pinna to the eardrum
Term
auditory meatus
Definition
auditory canal
Term
auditory nerve fibers
Definition
carry impulses from the inner ear to the brain
Term
vestibulocochlear nerve
Definition
composed of auditory nerve fibers; also known as cranial nerve VIII
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