EYE

Question 1

Eyelids

Answer 1

Palpebrae

Question 2

Stratified squamous epithelium (Composition of eyelids)

Answer 2

lines inner surface of eyelid and exterior anterior surface of eye

secretes mucin

-

Question 3

Lacrimal apparatus

Answer 3

Lacrimal glands
Lacrimal fluid screted- contains lysozyme
Lacrimal caruncle- associated with- modified sudiferous glands and sebaceous glands (move from outer corner in inner corner) CN VII

Question 4

Eyeball (layers)

Answer 4

3 Tunics

Fibrous Tunic
Vascular Tunic
Retina

Question 5

Fibrous Tunic (composed of)

Answer 5

Cornea-curved/transparent, transmits/refracts light

Sclera- Hard (opaque white of eye)

Question 6

Vascular Tunic (composed of)

Answer 6

Iris- pigmented
Ciliary body- smooth muscle (affects lens shape)
Choroid- lots of blood vessels

Question 7

Retina= inner tunic=neural tunic

Answer 7

Neurons for photoreceptors rods, cones

two layers (detached retina- layers become attached)

Question 8

Lens (Mechanism/Fxn)

Answer 8

changes shape and focuses light on retina; protein crystallin

Question 9

Cavities of the Eye

Answer 9

1. anterior cavity

2. posterior cavity

Question 10

anterior cavity

Answer 10

between lens and cornea; aqueous humor (filtrate of plasma)

Question 11

posterior cavity

Answer 11

between lens and retina; vitreous humor (gel-ike)