Eyes

Question 1

Eyebrow

Answer 1

Shade and protect the eye

Question 2

Eyelash

Answer 2

Protects eye by blinking and keeping dust out

Question 3

Eyelids (palpebrae)

Answer 3

Protects eye and spreads fluid over surface

Question 4

Palpebral fissure

Answer 4

Space between eyelid that allows light to enter when open

Question 5

Medial and lateral commissures (canthii)

Answer 5

Location where eyelids meet on the side

Question 6

Lacrimal caruncle

Answer 6

Tear duct, contains sebaceous and sweat glands

Question 7

Tarsal (meibomian) glands

Answer 7

produce lipid-rich secretion that prevents the eyelids from sticking together

Question 8

Conjunctiva

Answer 8

A transparent protective membrane that produces a lubricating mucus

Question 9

Palpebrae conjunctiva

Answer 9

Lines posterior surface of the eye

Question 10

Ocular (bulbar) conjunctiva

Answer 10

Lines the sclera (white of eye) on the anterior side of eye

Question 11

Lacrimal glands

Answer 11

Release a saline solution (tears) that protect and moisten the eye

Question 12

Lacrimal puncta, canaliculi, sac, and nasolacrimal duct

Answer 12

Drain tears from eye into the nasal cavity

Question 13

Extrinsic eye muscles

Answer 13

Hold eye in socket and moves it

Question 14

Lens

Answer 14

Focuses light on the retina of eye

Question 15

Tunics of eye

Answer 15

Protective layers on eye

Question 16

Fibrous tunic

Answer 16

Outmost layer of dense connective tissue

Question 17

Sclera

Answer 17

Covers all but the most anterior part of the eyeball, continuous with the dura mater

Question 18

Cornea

Answer 18

Transparent layer that covers the most anterior part of eyeball

Question 19

Vascular tunic (uvae)

Answer 19

Intermediate layer of the eyeball

Question 20

Choroid

Answer 20

Highly vascularized, dark layer that lines the posterior eye

Question 21

Ciliary body

Answer 21

Smooth muscles that control lens shape with suspensory ligaments

Question 22

Iris

Answer 22

Anterior part of uvea, smooth muscle that regulates light going into the eye

Question 23

Pigmented layer

Answer 23

Lines the entire posterior cavity, prevents scattering of light and stores vitamin A

Question 24

Neural layer

Answer 24

Layer that is actually responsible for vision, extends to ora serrata

Question 25

Rods

Answer 25

Photoreceptors that respond to dim light and are responsible for peripheral vision

Question 26

Cones

Answer 26

Photoreceptors that respond to bright light and are responsible for color

Question 27

Macula lutea

Answer 27

Area in posterior with a high concentration of cones

Question 28

Fovea centralis

Answer 28

At the center of macula lutea with the highest concentration of cones and the sharpest vision

Question 29

Bipolar/ganglion cells

Answer 29

Transmit visual signals towards brain

Question 30

Horizontal/amacrine cells

Answer 30

Facilitates or inhibits communication between photoreceptors and ganglion cells to adjust contrast of image sent to brain

Question 31

Optic disk

Answer 31

Blind spot with no photoreceptors where optic nerve originates and where blood supply enters the eye

Question 32

Posterior cavity

Answer 32

Area posterior to the lens, filled with vitreous humor

Question 33

Vitreous humor

Answer 33

Supports posterior surface of lens, and holds retina in place

Question 34

Anterior cavity

Answer 34

Area anterior to lens, filled with aqueous humor, anterior and posterior chamber

Question 35

Aqueous humor

Answer 35

Creates intraocular pressure of the eye, provides nutrients and removes waste from lens and cornea

Question 36

Canal of Schlemm

Answer 36

Drains excess aqueous humor