White, fibrous, rubberlike protective globe around the entire eye that is transparent in the front

Front of sclera, main refractive medium of eye, focuses light onto the retina

Mucus membrane that covers the front of the eye

Layer of photoreceptor cells and nerves

Area of the retina that has no receptors cell (this is your blind spot)

Layer directly deeper than retina that absorbs and prevents scattering of light fluids

A gelatinous fluid filling the majority of the eye aiding in refraction

Extracellular fluid (in front of the lens)

Refracts light, focuses light on the retina (why we need glasses, contacts, or laser surgery)

Hold lens in place, control the shape of the lens

The part of your eye that is colorful (blue, brown, green, etc), controls light input

The 'hole' to which light enters the eye

Lacrimal gland, tear, conjunctiva, lacrimal puncta, canal, nasolacrimal duct

To lubricate the eye and remove debris and bacteria

The extraocular (extrinsic) muscles of the eye provide for a remarkable tracking capacity of the eye. CNS mechanisms permit conjugate (binocular) movement of both eyes.

The intrinsic muscles are located in the ciliary body and the iris. Contraction of the ciliary muscles wrinkles the ciliary body tissue and puts slack in the processes, giving laxity to the suspensory ligaments which permits the lens to round up. (night)

Remember that the visual field from both eyes enters each side of the brain. The retina leads to the optic nerve, half of which extend to the opposite thalamus & midbrain. The occipital lobe is the main system responsible for visual perception.

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Bio quiz on Eyes

I NEED TO PASS BIOLOGY CLASS

Term	Definition
Sclera	White, fibrous, rubberlike protective globe around the entire eye that is transparent in the front
Cornea	Front of sclera, main refractive medium of eye, focuses light onto the retina
Conjunctiva	Mucus membrane that covers the front of the eye
Retina	Layer of photoreceptor cells and nerves
Rod cells*	Sensitive to light
Cone cells*	Sensitive to color
Optic Disc	Area of the retina that has no receptors cell (this is your blind spot)
Choroid	Layer directly deeper than retina that absorbs and prevents scattering of light fluids
Vitreous Humor*	A gelatinous fluid filling the majority of the eye aiding in refraction
Aqueous Humor*	Extracellular fluid (in front of the lens)
Lens	Refracts light, focuses light on the retina (why we need glasses, contacts, or laser surgery)
Suspensory Ligaments	Hold lens in place, control the shape of the lens
Iris	The part of your eye that is colorful (blue, brown, green, etc), controls light input
Pupil	The 'hole' to which light enters the eye
Structures	Lacrimal gland, tear, conjunctiva, lacrimal puncta, canal, nasolacrimal duct
Function of tears	To lubricate the eye and remove debris and bacteria
Extraocular Muscles	The extraocular (extrinsic) muscles of the eye provide for a remarkable tracking capacity of the eye. CNS mechanisms permit conjugate (binocular) movement of both eyes.
Intrinsic Muscles	The intrinsic muscles are located in the ciliary body and the iris. Contraction of the ciliary muscles wrinkles the ciliary body tissue and puts slack in the processes, giving laxity to the suspensory ligaments which permits the lens to round up. (night)
Visual Pathways	Remember that the visual field from both eyes enters each side of the brain. The retina leads to the optic nerve, half of which extend to the opposite thalamus & midbrain. The occipital lobe is the main system responsible for visual perception.

Created by: ajcol

"Know" box contains:
Time elapsed:
Retries: