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35 Cards in this Set
- Front
- Back
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Chemoreceptors (chemicals)
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smell and taste
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Thermoreceptors
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Temperature change
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Mechanoreceptors
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Movement or pressure
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Proprioreceptors
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potion of the body parts or changes in muscle length or tension
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Photoreceptors
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Light in the eye
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Free nerve endings
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pain, temperature, and crude touch.
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Meissner's Corpuscles
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fine touch and vibration
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Ruffini's Corpiscles
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touch and pressure
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pacinian corpiscles
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pressure and vibrations (pain)
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Krause end bulbs
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touch
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muscle spindles
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Proprioception
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Extrinsic muscles
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6
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Eye
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Protected by orbital socket, eyebrows, eyelids and eyelashes
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Lacrimal duct and glands
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In the canthus, continuously bath our eyes with flow of fluid
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lysozymes
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type of enzyme that cleanses our eyes, source of tears.
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Vitreous Humor
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Posterior chamber behind the lens: thicker
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Blind spot
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Nerve impulses through the optic nerve
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Opthalmologists
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Diagnoses and treat eye diseases
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optometrists
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prescribes eyeglasses and contacts
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External Ear
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Auricle (pinna), Contains ceruminous glands. Ends at the tympanic membrane
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Semicircular canals
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Nothing to do with hearing. Only help with balance
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Auditory tube (Eustacian tube)
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connects the middle ear to the throat
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Auditory ossicles
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Malleus ,Incus ,stapes
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Malleus
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Lays on the tympanic membrane
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Stapes
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Lays on the oval window
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MIddle ear
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Houses the ossicles,
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inner ear
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Made of labyrinth, subdivided into the vestibule, semicircular canals and cochlea
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Cochlea
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Hearing organ of corti (Inner Ear)
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Cochlear duct
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filled with fluid that vibrates when sounds waves from the stirrup bone strike it (inner ear )
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Taste receptors
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Chemoreceptors called taste buds
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Gustatory impulses
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Cranial nerve 7, 9 carry to...
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Primary taste
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Sweet, salty, bitter, sour
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Gustatory and olfactory
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work together to permit creation of many taste sensations
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Nerve 1
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Lie in olfactory mucosa of nasal cavity
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Smell
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Accounts for 90% of what we think of as taste.
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