eye structure

optic disc

blind spot back of the retina, no rods or cones optic nerve comes out from it

cornea

clear on eyeball, transparent anterior portion of outer layer

anterior cavity

composed of anterior and posterior chamber that contains aqueous humor

suspensory ligament

connects lens to ciliary body

choroid

contains the iris, choroid coat, and cilliary body posterior five-sixths of middle (vascular) layer

retina

contains the sensors/ receptors/ rod/ cones

posterior cavity

contains vitreous humor fluid, maintains the shape of the eye, pushes the lens towards the front and retina towards back

coroid coat

dark, absorbs light that doesnt hit the retina

firm and transparent

describe the lens of the dissected eye

jellylike substance

describe the vitreous humor of the dissected eye

aqueous humor

fills anterior and posterior chambers of the anterior cavity of the eye

vitreous humor

fills posterior cavity

absorbs light that doesnt hit the retina

function of the dark pigment in the choroid

iris

gives eyes its color cause lens to change shape

ciliary body

has muscle and ligaments to change the shape of the eye lens

human pupil is rounded whereas the dissected eye was elliptical

how do you compare the shape of the pupil in the dissected eye with your own pupil?

conjunctiva

inner lining of eyelid

cornea, aqueous humor, pupil of iris, lens, vitreous humor, retina

list the structures and fluid through which light passes as it travels from the cornea to the retina

more rods than cones; rods are stimulated by dim light; cones enable perception of color

list three ways in which rods and cones differ in structure or function

lacrimal gland

secretes tears

ciliary muscles

smooth muscle that controls the pupil size and light entering the eye

dense fibrous connective tissue

what kind of tissue is responsible for the toughness of the sclera?

anterior cavity between the cornea and the lens

where was the aqueous humor in the dissected eye?

sclera

which layer of the eye was most difficult to cut?

sclera

white part of outer (fibrous) layer