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35 Cards in this Set
- Front
- Back
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Hyperpolarization= |
Inhibitory (aka:?) |
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Photoreceptors |
Sense and encode light patterns |
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Conjunctiva |
-Transparent membrane that lines the eyelid and sclera -lubes and protects the eye |
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Lacrimal apparatus |
Lacrimal gland secretes tears, which drain into nasal cavity thru ducts |
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Sclera |
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Cornea |
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Anterior part |
Choroid |
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Ciliary body |
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Iris |
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Parasympathetic effect on iris |
Pupils Constrict |
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Sympathetic effect on Iris |
Pupils dilate |
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Fovea centralis |
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Rods |
Dim light Peripheral vision |
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Retina |
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Optic disc |
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Optic nerve |
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Retina receives blood supply from: |
Choroid and Central artery |
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Ganglion cell axons |
Part of retina, leaves eye as the optic nerve |
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Vitreous humor |
Clear gel that fills posterior segment of eye |
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Aqueous humor |
Plasma-like fluid in anterior segment in front of lens |
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Pathway of light thru eye: |
Cornea Aqueous humor Lens Vitreous humor Retinal photoreceptors |
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External auditory canal |
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Tympanic membrane (eardrum) |
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Eustachian tube |
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Cochlea |
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Malleus |
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Incus |
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Stapes |
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Semicircular canals |
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In the middle |
Vestibule |
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Static equilibrium |
Straight lines, horizontal and vertical changes |
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Dynamic equilibrium |
Located in semicircular canal Responds to angular movement |
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Organ of corti |
Hearing receptor in cochlea |
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Conduction deafness |
Hampers sound getting to inner ear (e.g. impacted earwax, perforated eardrum) |
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Sensorineural deafness |
Results from damage to neural structures from any point from cochlear hair cells to the auditory cortical cells |
