eye and ear structures Flashcards
1
Q
colored part of eye, regulates diameter of pupil
A
iris
2
Q
biconvex structure that focuses light on retina
A
lens
3
Q
external transparent layer of eye
A
cornea
4
Q
black opening in middle of eye
A
pupil
5
Q
muscles that regulate curvature of lens
A
ciliary muscles
6
Q
responsible for extreme visual activity
A
fovea centralis
7
Q
layer at the back of eye sensitive to light
A
retina
8
Q
blind spot, place on retina where optic nerve forms
A
optic disc
9
Q
bundle of axons leaving eye towards brain
A
optic nerve
10
Q
cone cells
A
-color vision
-high light intensity
RGB
-concentrated in fovea centralis
11
Q
rod cells
A
- black and white vision
- low light intensity
- concentrated in periphery
- absent in fovea
12
Q
semicircular ear canals
A
sense rotational equilibrium
13
Q
saccule and utricle ear
A
sense stationary equilibrium
