Special Senses Flashcards
(36 cards)
What is transmitted to the optic nerve so the eyes can see?
light rays
What protects the eye?
bony socket, eyelids & eyelashes, lacrimal glands (tears), and conjunctiva
Middle layer containing blood vessels that keep the eye nourished with blood
choroid coat
innermost layer
retina
outer layer and white of the eye
sclera
attached to extrinsic muscles that are responsible for moving the eye
sclera
colored muscular layer surrounding pupil
iris
intrinsic muscles lay here
iris
opening front of choroid coat
pupil
crystalline structure located behind the iris and pupil
lens
Amblyopia
lazy eye
curvature of the eye that causes blurred distance & near vison
astigmatism
clouding of the normally clear lens of the eye
cataract
conjunctivitis
pink eye
farsightedness
hyperopia
nearsightedness
myopia
gradual loss of the eyes ability to focus on nearby objects
presbyopia
condition where a person cannot use both eyes with coordination
strabismus
examines the cornea, lens, and vitreous humor for cloudiness. Examiner can see the blood vessels at the back of the eye (fundus) and note degenerative changes in the retina
ophthalmoscope
Where are sound waves transmitted?
auditory nerve
The visible ear and collects sound waves
pinna or auricle
contains the cavity in temporal bone
middle ear
bones of the middle ear
malleus (hamer), incus (anvil), stapes (stirrups)
spiral shaped organ of hearing containing a membranous tube (the cochlear duct)
cochlea