Term
| The outer ear consists of what? |
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Definition
| Pinna, antihelix, Concha, Helix, external meatus, tragus antitragus, lobule |
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Term
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Definition
| captures sound waves and protects external meatus |
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Term
| External meatus function? |
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Definition
| directs sound to tympanic membrane |
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Term
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Definition
| Detects sounds from behind |
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Term
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Definition
| auditory canal, mastoid bone, ossicles, vestibular canals, eustachian tube, cochlea, tympanic membrane, vesttibule containing utricle and sacccule |
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Term
| Structures of the middle ear? |
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Definition
| tympanic membrane, ossicles, stapes, eustachian tube |
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Term
| tympanic membrane description? |
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Definition
| stretches across ear canal where middle ear begins |
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Term
| Name the ossicles of the ear? |
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Definition
| malleus, incus and stapes |
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Term
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Definition
| vibration of sound waves against tympanic membrane sets bones into motion |
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Term
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Definition
| Strikes oval window of inner ear |
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Term
| Eustachian tube is located where? |
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Definition
| from middle ear to nasopharynx |
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Term
| Eustachian tube function? |
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Definition
| equalizes pressure against the tymanic membrane |
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Term
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Definition
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Term
| structures of the inner ear are? |
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Definition
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Term
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Definition
| Oval window sets fluid in motion here, sense of sound |
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Term
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Definition
| vestibular canals, semicircular canal and the utricle and saccule - sense of balance |
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Term
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Definition
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Term
| Lacrimal apparatus function? |
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Definition
| Secretes and drains tears from the surface of the eyeball. |
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Term
| What are the two types of muscles of the eye? |
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Definition
| extraocular and intraocular |
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Term
| Extraocular muscles are _________? |
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Definition
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Term
| Inferior oblique function? |
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Definition
| rotates top of eye away from the nose |
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Term
| Inferior rectus function? |
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Definition
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Term
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Definition
| moves eye outward away from nose |
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Term
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Definition
| moves eye inward, towards nose |
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Term
| superior oblique description? |
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Definition
| rotates top of eye toward nose |
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Term
| superior rectus function? |
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Definition
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Term
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Definition
| unique structure that holds superior oblique and limits eye rotation upward and downward |
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Term
| Intraocular muscles consist of? |
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Definition
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Term
| Ciliary muscles are __________? |
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Definition
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Term
| Ciliary muscle description and function? |
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Definition
| radial and circular smooth muscle - helps focus lens |
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Term
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Definition
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Term
| The eye is the ONLY organ with what? |
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Definition
| both voluntary and involuntary muscles |
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Term
| What are the tissue layers of the inner eye? |
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Definition
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Term
| Fibrous tissue layer of the inner eye consists of what? |
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Definition
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Term
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Definition
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Term
| Cornea location and description? |
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Definition
| anterior of sclerae and covers the iris |
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Term
| Vascular tissue layer of the inner eye consists of ? |
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Definition
| Choroid, ciliary body and iris |
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Term
| Choroid of the eye contains what? |
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Definition
| blood vessels and melanin |
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Term
| Ciliary body is located where? |
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Definition
| between the retina and iris |
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Term
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Definition
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Term
| What holds the lens in place? |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| Inner tissue layer of the inner eye consists of what? |
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Definition
| retina, optic nerve and retinal blood vessels |
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Term
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Definition
| intermost coat on back of eyeball |
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Term
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Definition
| nervous tissue, rods and cones |
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Term
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Definition
| nervous tissue, rods and cones |
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Term
| Optic nerve is which cranial nerve? |
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Definition
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Term
| Retinal blood vessels function? |
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Definition
| important blood supply to retinal surface (fundus) |
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Term
| What are the two cavities of the eye? |
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Definition
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Term
| Anterior cavity consists of what? |
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Definition
| Anterior chamber and posterior chamber |
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Term
| Anterior cavity is located where? |
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Definition
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Term
| Anterior cavity contains what? |
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Definition
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Term
| Posterior cavity is located where? |
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Definition
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Term
| Posterior cavity contains what? |
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Definition
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Term
| What helps maintain intraocular pressure so eyeball does not collapse? |
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Definition
| vitreous humor and aqueous humor |
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Term
|
Definition
| bending light rays to focus on retina |
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Term
| What structures are responsible for refraction? |
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Definition
| lens and cornea, aqueous and vitreous humor |
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Term
| Accommodation description? |
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Definition
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Term
| What are two types of accommodation? |
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Definition
| near vision and far vision |
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Term
|
Definition
| ciliary muscle contracts, lens bulges |
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Term
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Definition
| ciliary muscle relaxes, lens flat |
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Term
| Constriction of pupil description? |
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Definition
| controls amount of light to provide best vision |
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Term
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Definition
| eyes move inward to provide monocular vision of objects |
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Term
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Definition
| Responsible for vision in dim light |
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Term
|
Definition
| Responsible for color vision |
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Term
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Definition
| Carries mpulse to optic chiasma where nerves cross before ending in geniculate nuclei in brain |
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