Special Senses Eye

Question 1

Conjunctiva

Answer 1

thin, clear, colorless, mucous membrane that covers entire eye (protects)

Question 2

Sclera

Answer 2

white part of eye that that maintains eye shape and protects eye

Question 3

Cornea

Answer 3

clear, anterior portion of sclera, protects iris, no blood vessels, gets oxygen from tears

Question 4

Choroid

Answer 4

blood rich coating of the eyeball; provides nourishment to eye, provides oxygen and nutrients to the outer layer of the retina, contains melanin

Question 5

Pupil

Answer 5

controls light entering inside the eye, prevents excess light

Question 6

Iris

Answer 6

muscular layer that surrounds pupil to constrict or dilate pupil

Question 7

Lens

Answer 7

clear curved flexible structure that focuses images on the retina

Question 8

Ciliary body

Answer 8

(ciliary muscle and suspensory ligaments) adjusts shape of lens to help focus on object

Question 9

Aqueous Humor

Answer 9

cleanses the eye and provides nutrients to cornea and lens; hold shape of anterior eye

Question 10

Vitreous Humor

Answer 10

gel like fluid that hold retina in place

Question 11

Retina

Answer 11

contains photoreceptors that receives images from the envion. And converts them to nerve (electrical impulses) change light impulses to electric

Question 12

Photoreceptors - Rods

Answer 12

responsible for black and white (allow us to see in dim light and provide our peripheral vision)

Question 13

Photoreceptors - Cones

Answer 13

responsible for colors and hues

Question 14

Macula

Answer 14

area on retina that contains specialized cones in high density to help with high acuity (fovea Centralis)

Question 15

Optic nerve

Answer 15

2nd cranial nerve for processing images

Question 16

lacrimal Apparatus (tear apparatus)

Answer 16

in the medial corner