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42 Cards in this Set
- Front
- Back
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olfactor receptor cells
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first order,bipolar neurons of olfactory pathway
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olfactory epitheilm
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occupies the superior part of nasl cavity
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olfactor receptor cells
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first order, bipolar neurons of olfactor pathway
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olfactor hair cells
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sense of smell
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olfactor hairs
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non motile cilia that project from dendrite that resonds to inhaled chemicals
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supportint sells (olfactory)
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columnar epithelial cells
physical support, nourishmentm, electrical insulation |
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basal cells
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stem cells that produce new olfactor receptor cells (neurons)
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olfactory glands
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mucus that is carried to the surface of epithelium by ducts
secretion moistenes the surface dissolves odorants innerfaved by branches of facilal nserve |
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olfactory tranduction
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axons project to the limbic system and hypothalamus
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cornea
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transpartent coat that cover iris
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vascular tunic
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composed of choroid, ciliary body and iris
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iris
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regulates amount of light entering through the pupil
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retina
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lines the posterior three quarters of the eyeball and is the beginning of the visual pathway
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pigtmented layer
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melanin containing epithelial cells that absort stray light rays and prevent reflection and as
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vascular tunic
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composed of choroid, ciliary body, iris
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neural layer
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photoreceptors, rods, cones
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central fovea
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small depression at exact center of posterior portion of retina
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lens
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made of proteins called crystallins
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anerior cavity
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anterior and poterior chambers
filled with aqueus humor |
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veitreous body
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jelly like substance that holds the retina flush against the chorid
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intraocular pressure
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16 mm hg
maintins shape of eyeball |
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image formation
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refraction or bending of light by the lens and cornea
accommodation, the change in shape of the lens |
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emmetropic
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eye (normal)
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myopia
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(near sighted)
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hyper opia
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(farsigghted)
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external ear
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auricle, external auditor canal, tympanic membrane
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middle ear
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air filled cavity in temporal boe- most ear infections here
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internal ear
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called labyrinth, complicate serius of canals
vestibular membrane |
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basiliar membrane
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spiral organ or organ of corti
coiled sheet of epithelial cells/ including supporting cells and about 16,000 hair cells converts vibrations to action otentials |
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spinal organ/organ of corti
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coiled sheet of epithelial cells/ incudling suporting cells and about 16000 hair cells
vonverts vibrations to action potentials |
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pathway of sound
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typanic membrane
ossicles oval window cochlea vestbulocochoare nervge primary auditory cortex |
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frequency
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numer of pressure waves per unit time
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static equbrium
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maintence othe position of body relative to force of gracity
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dynamic equibrium
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maintence of body position in response to sudden ovements
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vestibular apparatus
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receptor organs for equibrium, the saccule, utricle and semicircular ducts
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otholithic organs
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sacule and utricle
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macula
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thickened region of saccula and utricle
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hair cells
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sensory receptors
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supporting cells
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secrete thick, gelanannous layer called otolithic membrane
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semicircular ducts and canals
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funciton in dymanic equibrium
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ampulla
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dialated portion of each duct
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cristae
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small elevation in ampulla
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