physiology
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| location of general senses | skin, various organs and joints
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| location of specialized senses | eyes and ears
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| ________ receptors collect info from the enviroment? | sensory
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| When the brain becomes aware of sensory impule it is known as a? | sensation
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| 5 types of receptors | 1. chemoreceptors2. painreceptors3. thermoreceptors4. mechanoreceptors5. photoreceptors
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| what receptor respond to light | photoreceptors
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| what receptor resonds to pressure | mechanoreceptors
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| chemical concentration changes are detected by | chemoreceptors
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| temperature changes are detected by | thermoreceptors
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| what receptor responds to tissue damage | pain receptors
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| what is meant by the term projection when discussing sensation | brain pinpoints where sensation is coming from
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| what is meant by sensory adaptation | ability to adapt
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| what is needed for the impule to continue to trigger an impule | stronger stimulus
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| 3 groups of senses considered general sesnes. | 1. exteroreceptive2. viscerorecptive3.proprioreceptive
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| ____ senses sense changes in the viscera, such as blood pressure | visceroreceptive
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| senses associated with changes in tendons and muscles are called | proprioreceptive
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| temp, pain, and touch are associated with what senses | exteroceptive
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| _____ corpuscles detect fine touch in dermis | Meissner's
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| _____ corpuscles detect heavy pressure(pain). | pacinan
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| simplest receptors found in the epithelial tissue are known as | free nerve endings
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| ___ receptors respond to temp. below 50 | pain
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| ___ receptors respond to temp between 50 and 68 | cold
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| ___ receptors resond to temp between 77 and 113 | warm
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| receptors resond to temp above 113 | pain
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| describe the pain receptors in brain tissue | lacks pain receptors
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| how do pain adapt to repeated impules of pain | very little if at all
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| describe what is known as referred pain | pain is not pinpointed
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| dull, aching pain is carried by | chronic pain fibers
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| sharp pain is carried by | acute pain fibers
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| acute pain fibers carry impules more quickly because they are | myelinated(insulated)
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| the what of the brain determines the intensity of the pain, and the emotional and motor reaction to the pain. | cerebral cortex
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| list 3 pain killing substances produces by the body | 1. enkephlins 2. serotonin 3. endorphins
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| where in the body are stretch receptors found | muscles and tendons
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| name four special senses | tates, smell, hearing, sight
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| four step pathway of an olfactory impule | olfactory nerve- olfactory bulb- olfactory tracts- limbic system
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| spicy food activate____ receptors | pain
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| another name for eardrum? | tympanum membrane
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| outer ear the catches vibrations | auricle
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| the area of the ear that contains the ceruminois glands is the | external auditory meatus
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| auditory ossicles | malleus. incus. stapes
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| ____ tube empties into the pharynx and keeps pressure equal on both sides of the eardrum | auditory
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| the actual hearing organ of the inner ear is the | cochlea
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| the what and what are associated with equilibrium | the semicircular canals and vestibule
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| ____ equilibrium means determining body position while only head is moving | dynamic
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| list 3 visual accessory organs | eyelids. lacrimal apparatus. extrinsic eye muscles.
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| term for eyelid | palpebra
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| closing the eyelid is the | orbicularis oculi
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| opening the eyelid is the | levator palpebre superious
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| lining eyelid | conjuctiva
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| what glands secrete oil onto eyelashes | tarsal
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| tears produced by what gland | lacrimal
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| where are the lacrimal glands located | superior lateral side
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| emptying tears into the nasal cavity is the? | nasolacrimal duct
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| light is first refracted by the ____ as it enters the eye | cornea
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| the protective outer white layer of the eye | sclera
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| extra light that enters the eye that dilates and constricts the pupil | iris
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| the lens is moved for focusing by the | ciliary body
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| the second refracting layer found in the eye is biconvex lens called | lens
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| inner layer of the eye that contains the rods and cones is | retina
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| gel that holds the lens in place is | vitreous humor
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| the area of the retina that produces the sharpest image | fovea centralis
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| ____ shaped lens causes light rays to diverge | concave
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| ___ shaped lens causes light rays to converge | convex
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| describee actual image being focused upon the retina | upside down and reversed left to right
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| ____ cells detect color vision | cones
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| ____ cells detect light | rods
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| name the 3 pigments found in cone cells | erythrolabe(red). chlorable(green). cyanolabe(blue)
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| steroscopic vision provides perception of ___ and ____ | distance and depth
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| list 3 age related visual problems | glaucoma, cataracts, mascular degeneration
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| near sightedness called? | myopia
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| farsidedness? | hyperpia
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| in myopia, where is focal point of image located with respect to retina? | front
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| in hyperpia where is the focal point of the image located? | back or beyond retina.
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Created by:
Mollie28
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