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Anatomy Lab Quiz 4 > Eyes: > Flashcards

Flashcards in Eyes: Deck (13):
1

Eyes:

visual sense organs within bony orbits of the skull

supplied by the OPTIC nerve

2

Eye Outer layer:

CORNEA-controls an d focuses light into eyes

SCALERA: opaque membrane(white of eyes) protects/supports eyeballs

3

Eye Middle layer:

CHOROID:thin layer of tissue that cotains blood vessels for oxygen/nutrients for eyes

melanin prvents light waves from reflecting back out of eyes

4

Eye Innerlayer:

RETINA
IRIS
PUPIL

5

Retina:

receive light that the eyes lens has focused

convert the light into neural signals

send these signals on to the brain for visual recognition.

6

Iris:

controls the diameter of the pupil, reponsible for eye color (pigment cells)

7

Pupil:

anterior opening, allows light in

8

Eye lense:

hangs from the siallary muscle

to change the angle to RETRACT light

bends/refracts light & focuses light on retina

9

Anterior chamber:

aquaious humor with watery fluid b/w the cornea & iris

10

Posteior chamber:

vitrous humor b/w iris & eye lense

holds the retina against the choroid

11

Rods:

to see during low-light conditions
peripheral vision
photoreceptor cells

12

Cones:

visual acuity

viewing objects in sharp focus & color vision

13

how do you see?

light contacts the retina

bipolar cells

reaches the rods/cones in the photo-receptor cell layer