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Special Senses
Eye & Ear Functions
48
Anatomy
Undergraduate 1
04/19/2009

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Cards

Term
lacrimal gland
Definition
produces tears
Term
lacrimal sac
Definition
carries tears through nasolacrimal duct
Term
vascular tissue
Definition
consists of choroid, ciliary body, and iris
Term
sclera
Definition
maintains eyeball shape
Term
cornea
Definition
site for light refraction
Term
inferior oblique
superior oblique
lateral rectus
Definition
laterally deviates gaze
Term
ciliary muscles
Definition
sphincter, can change the shape of the lens
Term
pupil
Definition
allows light to enter the eye
Term
retina
Definition
covers inner surface of the eyeball (posterior to the ciliary body)
Term
rods & cones
Definition
photoreceptor cells
Term
anterior chamber
Definition
lies between cornea and iris
Term
aqueous humor
vitreous humor
posterior cavity
Definition
maintains intraocular pressure
Term
posterior chamber
Definition
lies between iris and the lens
Term
vitreous humor
Definition
maintains intraocular pressure (slower than aqueous)
Term
bulbar conjunctiva
Definition
covers anterior white surface of the eye
Term
ciliary body
Definition
continuous with choroid, contains smooth muscles
Term
ciliary processes
Definition
produces aqueous humor
Term
auditory tube
Definition
equalizes air pressure between outside air and middle ear cavity
Term
auricle
Definition
helps collect sound waves
Term
***basilar membrane
Definition
responds to vibrations, supports the organ of corti
Term
cochlea
Definition
hearing
Term
***cochlear duct
***scala tympani
***scala vestibuli
Definition
transmits vibrations
Term
external acoustic meatus
Definition
passageway from outside to eardrum
Term
stapes, incus, malleus
Definition
transmits vibrations from the tympanic membrane to oval window
Term
***organ of corti
Definition
converts sound vibrations
Term
tympanic membrane
Definition
separates external acoustic meatus from the tympanic cavity
Term
***outer hair cell
Definition
regulating tension of basilar membrane
Term
oval window
Definition
communicates with vestible of inner ear
Term
semicircular canal
semicircular ducts
saccule
utricle
vestibule
Definition
equilibrium/balance
Term
***vestibular membrane
Definition
transmits vibrations (from scala vestibuli and cochlear duct)
Term
tectorial membrane
Definition
transmits vibrations (to outer hair cells)
Term
vestibulocochlear nerve
Definition
balance and hearing
Term
tympanic cavity
Definition
separates the external acoustic meatus from the inner ear???
Term
anterior cavity
Definition
separates lens and cornea, filled with aqueous humor
Term
anterior chamber
Definition
lies between the cornea and the iris
Term
aqueous humor
Definition
maintains intraocular pressure
Term
canal of Schlemm
Definition
drains aqueous humor to blood stream
Term
choroid
Definition
prevents light reflection within the eye
Term
medial rectus
inferior rectus
superior rectus
Definition
medially deviates gaze
Term
iris
Definition
regulates pupil size
Term
lacrimal canal
Definition
carries tears from the lacrimal gland to the lacrimal sac
Term
lens
Definition
light refraction
Term
levator palpebral superioris
Definition
elevates eyelid
Term
neural retina
Definition
converts light energy into an electrochemical signal
Term
optic nerve
Definition
transmits visual information from the retina to the brain
Term
ora serrata
Definition
separates the retina and the ciliary body
Term
posterior cavity
Definition
maintains
Term
suspensory ligaments
Definition
suspends lens from the ciliary body
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