| A | B |
|---|
| choroid | middle layer of the eye |
| sclera | outer layer of the eye |
| retina | inner layer of the eye |
| cornea | anterior extension of the sclera |
| pupil | opening in the center of the iris |
| iris | color part of the eye |
| vitreous humor | gel-like substance in posterior cavity of eye |
| aqueous humor | watery fluid in anterior cavity of eye |
| suspensory ligaments | ciliary muscles attach to these to pull on the lens |
| conjunctiva | mucous membrane lines inner surface of eyelids |
| optic disc | the blind spot |
| ciliary body | gives rise to intrinsic eye muscles |
| lens | refractive structure |
| external ear | pinna or auricle |
| ossicles | hammer, anvil, & stirrup |
| tympanic membrane | eardrum |
| malleus | hammer |
| incus | anvil |
| stapes | stirrup |
| function in balance | semicircular canals |
| oval window | receives vibration from stapes |
| eustachian tube | connects middle ear to throat |
