Eye/Ear Anatomy w/ pictures

Lacrimal Gland

A

Function: creates and secretes lacrimal fluid (tears) which keep the eye moist

Sclera

A

Function:protective, outer layer of the eye, white of eye

Iris

C

Function: controlling the diameter and size of the pupils and thus the amount of light reaching the retina--color part of eye

Cornea

D

Function: refracts light; contributes to eye focusing-clear wear conact

Pupil

E

Function: controls amount of light that enters the retina

Lens

G

Function: helps to refract light to be focused on the retina

Suspensory ligaments

H

Function:supports the eye, and prevents downward displacement of it. -- white lines ciliary body

Ciliary Body

I

Function: produces the aqueous humor

Retina

J

Function: converts light rays into electric signals which are sent to the brain. deepest layer

Optic nerve

K

Function: transmits visual information from the retina to the brain. tube back of eye yellow

Choroid (of eye)

L

Function: provides oxygen and nourishment to the outer layers of the retina

Vitreous humor

M

Function: helps keep the retina in place. big clear ball

Optic disc

A

Function: creates blind spot in eye. small circle

Pinna (of ear)

A

Function: to collect sound, and perform spectral transformations to incoming sounds which enable the process of vertical localization to take place. outside of ear

Outer Ear

B

Function:to collect sound, and perform spectral transformations to incoming sounds which enable the process of vertical localization to take place; funnel sound into middle and inner ear

Middle ear

C

Function:to efficiently transfer acoustic energy from compression waves in air to fluid-membrane waves within the cochlea

Inner Ear

D

Function:converting sound pressure patterns from the outer ear into electrochemical impulses which are passed on to the brain via the auditory nerve; helps maintain balance

Tympanic membrane

F

Function: to transmit sound from the air to the ossicles inside the middle ear.EARDRUM

auditory tube

E

Function: Pressure equalization; mucous drainage

External auditory canal

G

Function: funnel sound to middle ear. TUBE IN

Incus (anvil)

C

Function: transmit sound vibrations to stapes. ORANGE WIRE

Stapes (Stirrup)

D

Function:transmits the sound vibrations from the incus to the membrane of the inner ear inside the oval window. SNAIL ATTACH

Tympanic membrane (view 2)

E

Function: to transmit sound from the air to the ossicles inside the middle ear. EARDRUM

Cochlea

H

Function: converts motion to electrical signals. SNAIL SHELL

Vestibule

I

Function: involved in the sense of equilibrium. SNAIL HEAD AND BODY

Semicircular canals

J

Function: involved in the sense of equilibrium. SNAIL CRAZY HORNS