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Chapter 13 Sensory
Sensory
| Question | Answer |
|---|---|
| Area of a neuron that detects specific stimulus | receptor |
| detects light | photoreceptors |
| detects pain | nociceptors |
| detects chemical | chemoreceptor |
| detects temperature | thermoreceptors |
| detects movement | mechanoreceptors |
| 5 general senses | pain, touch, pressure, temperature, and proprioception |
| stimulated by tissue damage | nociceptors |
| Do nociceptors adapt? | no |
| aka touch receptors | tactile receptors |
| Do thermoreceptors adapt? | yes |
| sense of orientation/position | proprioception |
| 5 special senses | smell, taste, sight, hearing, and balance |
| aka sense of smell | olfaction |
| aka sense of taste | gustation |
| 4 basic taste sensations | sweet, salty, sour, bitter |
| structure that secretes tears | lacrimal gland |
| colored part of the eye | iris |
| posterior cavity of eyeball is filled with this | vitreous humor |
| anterior cavity of eyeball is filled with this | aqueous humor |
| outer layer of the eyeball | sclera |
| inner layer of the eyeball | retina |
| where is the conjunctiva | inside eyelid, over sclera, not cornea |
| gel substance that pushes the retina against the choroid layer | vitreous humor |
| enzyme in tears that prevents infection | lysozyme |
| eyelid doesn't raise, person appears sleepy | ptosis of lid |
| moves eyeball | extrinsic eye muscles |
| transparent covering of iris | cornea |
| "hole" in the middle of iris that allows light to enter | pupil |
| what happens to pupil in increased conditions | constricts |
| what happens to pupil in decreased light conditions | dilates |
| where are photoreceptors in the eyeball | retina |
| bends (refracts) light to focus in eye | lens |
| cloudy lens that blocks light | cataract |
| parts of the external ear | auricle (pinna) and external auditory canal |
| parts of the middle ear | tympanic eardrum, malleus, incus, stapes, Eustachian tube |
| parts of the inner ear | vestibule, semicircular canals, cochlea |
| connects inner to throat to equalize pressure | Eustachian tube |
| aka tympanic membrane | eardrum |
| part of ear where cerumen is secreted | external auditory canal |
| inner ear parts important for balance | vestibule and semicircular canals |
| what type of receptor detects sound | mechanoreceptors |
| part of inner ear where mechanorecepteros are located | cochlea |
| what is the ossicle | tiny bone in middle ear(malleus, incus, stapes) |
| ossicle directly behind the tympanic membrane that receives vibrations from eardrum | malleus |
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riverwolf
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