Ophthalmology Anatomy & Physiology

Question 1

Colored part of eye

Answer 1

Iris

Question 2

Black part of eye

Answer 2

Pupil

Question 3

3 layers of tissue in eyeball

Answer 3

1. Fibrous sclera and cornea, 2. vascular choroid layer, 3. retina

Question 4

White part of eye

Answer 4

Sclera

Question 5

Window of eye; transparent layer covering iris and pupil

Answer 5

Cornea

Question 6

Layer made up of black pigment cells, absorbs light rays so they aren’t reflected. Has blood vessels for retina

Answer 6

Choroid

Question 7

Posterior inner part of eye

Answer 7

Fundus

Question 8

Innermost layer of eye

Answer 8

Retina

Question 9

Cells for color vision/daytime vision

Answer 9

Cones

Question 10

Cells for dim light/darkness vision

Answer 10

Rods

Question 11

Clear, crystalline body of eye

Answer 11

Lens

Question 12

Structure found on each side of lens connecting choroid and iris

Answer 12

Ciliary bod

Question 13

Muscles that control shape of lens and secrete aqueous humor

Answer 13

Ciliary muscles

Question 14

Region on retina which contains fovea

Answer 14

Macula

Question 15

Depression in center posterior end of retina, has highest concentration of cones

Answer 15

Fovea

Question 16

Secrete tears

Answer 16

Lacrimal galnds

Question 17

Where tears pass, keeping eyes moist

Answer 17

Lacrimal ducts

Question 18

Moist mucous membrane extending continuously to inner layers of eye lids

Answer 18

Conjunctiva

Question 19

Conjunctiva covering undersurface of eyelids

Answer 19

Palpebral conjunctiva

Question 20

Conjunctiva coating anterior portion of eyeball

Answer 20

Bulbar conjunctiva

Question 21

Conjunctiva forming a fold between lid and globe

Answer 21

Fornix conjunctiva

Question 22

Watery fluid located in anterior and posterior chambers; maintains pressure of eye

Answer 22

Aqueous humor

Question 23

Area behind lens of eye

Answer 23

Vitreous chamber

Question 24

Jelly-like fluid located behind lens; maintains ball-like shape of eye

Answer 24

Vitreous humor

Question 25

Pupil size

Answer 25

Adjustment

Question 26

Lens becomes thinner or thicker to bring object into focus

Answer 26

Accommadation

Question 27

Bending of rays on the retina

Answer 27

Refraction

Question 28

Positioning of both eyeballs to focus on one object

Answer 28

Convergence

Question 29

Blind spot where optic nerve forms

Answer 29

Optic disk

Question 30

Point at which fibers of optic nerve cross in brain

Answer 30

Optic chiasm

Question 31

Transmits touch, pain, pressure etc from eyes to brain

Answer 31

Trigeminal nerve (Cranial nerve V)