The eye

iris

muscle to open and close pupil
allows how much light comes into the pupil

pupil

lets light in

lens

vitreous humor

gel-like within _________ body
posterior chamber
pressure of the eye for lens and corona stability

cornea

clear covering of the eye
slow healing - only structure in the body without blood supply

sclera

gives the eye shape (in socket)

retina

nerve ends and specialized cells to form pictures
innermost layer of the eye

choroid

muscular & vascular area

optic nerve

attached to retina

retina, choroid, sclera

3 layer tunics

trochlea

7
pulley system

superior oblique

muscle
eye turns inferior & lateral (down & out)

inferior oblique

muscle
eye turns superior & lateral (up & out)

lateral rectus

muscle

superior rectus

muscle

medial rectus

muscle

inferior rectus

muscle

aqueous humor

watery solution within the anterior chamber

lacrimal gland

fovea centralis

O
retina attached to optic nerve

ora serrata

A
reshapes the lens

cillary body

B
shapes the lens to direct light

suspensory ligaments

C
holds up the lens

anterior chamber

anything in front of the cillary body & pupil

posterior chamber

anything behind the cillary body & pupil

vitreous body

sclera

K

choroid

L

retina

M

optic nerve

P

cornea

D

lens

H

pupil

F

vitreous body

J

superior oblique

muscle

lateral rectus

muscle

superior rectus

muscle

inferior rectus

muscle

inferior oblique

muscles

levator palpebrae

tendon of superior oblique

6

tapetum lucidem

blue area