1000ft view of eye

Question 1

What is the function of the cornea

Answer 1

Assist with focusing light
protection

Question 2

What do the outer layer of the cornea contain

Answer 2

nociceptors

Question 3

What is the sclera of the eye

Answer 3

thin anterior covering of the eye

Question 4

What is the function of the sclera

Answer 4

Point of attachment for the eye muscles

attaches cornea to limbus

assists with protection/shape

Question 5

What is the inner most aspect of the sclera and what is its function

Answer 5

lamina fusca
prevents light waves from scattering by absorbing it

Question 6

What are the cranial nerves of the eye

Answer 6

2,3,4,6

Question 7

What is the iris

Answer 7

vascular layer of the eye

Question 8

What is the function of the iris

Answer 8

creates pupil
creates eye color
separates ant &post chambers

Question 9

What innervates the iris

Answer 9

3

Question 10

What is dilated pupil known as

Answer 10

mydriasis

Question 11

What is constricted pupils known as

Answer 11

miosis

Question 12

What helps constrict the pupil

Answer 12

sphincter pupillae

Question 13

What causes pupil to dilate

Answer 13

dilator pupillae

Question 14

What makes up the fibrous layer of the eye

Answer 14

sclera
cornea

Question 15

What makes up the vascular layer of the eye

Answer 15

iris
ciliary body
choroid

Question 16

What is the function of the choroid

Answer 16

helps deliver nutrients to the photoreceptor neurons

assists with absorption of light by preventing reflection/scattering

Question 17

What is the choroid of the eye

Answer 17

vascular layer that wraps from the ciliary body around the posterior aspect of the eye

Question 18

What is the ciliary body

Answer 18

attaches to the lens to help with accommodation
-relaxation
-contraction

Question 19

What is the function of the ciliary body

Answer 19

secretes aqueous humor to fill anterior chamber

Question 20

What autonomic system is in control of ciliary body relaxation

Answer 20

sympathetic
*allows for far vision accommodation

Question 21

What autonomic system is in control of ciliary body contraction

Answer 21

parasympathetic
*allows for near vision accommodation

Question 22

What is the function of the lens of the eye

Answer 22

transparent structure that refracts light

can be pulled to alter the shape and focus light from accommodation

Question 23

What is the lens of the eye

Answer 23

transparent structure made up of the capsule, epithelium, and fibers

Question 24

What are the types of fluid in the eye

Answer 24

aqueous humor
Vitreous humor

Question 25

What is aqeous humor

Answer 25

water like fluid created in the ciliary body through plasma filtration

Question 26

what is the purpose of aqueous humor

Answer 26

maintains intraocular pressure bring nutrients to the avascular aspect of the anterior eye

Question 27

What is vitreous humor

Answer 27

thick, jelly like fluid in the posterior aspect of the eye

Question 28

What is the purpose of the vitreous humor

Answer 28

keeps intraocular pressure maintains shape transmits light to retina

Question 29

What is the vascular supply for the eye

Answer 29

posterior ciliary arteries internal carotid central retinal artery ophthalmic artery

Question 30

What is the importance of the canal of Schlemm

Answer 30

Drainage of aqueous humor

Question 31

What are the contents within the orbit

Answer 31

ophthalmic nerve optic nerve ophthalmic vein/artery lacrimal gland eyeball fat extra ocular muscles

Question 32

What is the purpose of the mucin layer of tears

Answer 32

to help the tears stick to the eye

Question 33

What is the lacrimal gland and where is it located

Answer 33

located laterally secretes fluid that moves across the cornea

Question 34

What is the lacrimal punctum and what is its function

Answer 34

small holes in the corner of the eye that drain into the lacrimal gland

Question 35

What is the purpose of the lacrimal canal

Answer 35

joins the lacrimal duct and lacrimal sac then fluid drains into the nasal cavity through the nasal lacrimal duct

Question 36

What is the meibomian gland

Answer 36

oil gland along the edge of the eyelid that secretes oil to prevent tears from evaporating too quickly

Question 37

What is the Zeis gland

Answer 37

sebaceous gland

Question 38

What is the moll gland

Answer 38

apocrine gland

Question 39

What is the area within the eye with the highest visual acuity

Answer 39

macula lutea

Question 40

Which part of the eye contains only cones

Answer 40

fovea centralis

Question 41

What is the function of cones within the eye

Answer 41

color and visual acuity under well lit conditions

Question 42

What do the cones in the eye contain

Answer 42

Phototopsin which helps pick up different colors of visible light spectrum

Question 43

What is the function of rods

Answer 43

black/white/gray vision in poorly lit environments AKA night vision

Question 44

What do the rods in the eye contain

Answer 44

rhodopsin

Question 45

What are bipolar cells in the eye

Answer 45

in between of photoreceptors and ganglion cells

Question 46

What are ganglion cells in the eye

Answer 46

long axon form together to crease CN2