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Cha12.
physiology
| Question | Answer |
|---|---|
| location of general senses | skin, various organs and joints |
| location of specialized senses | eyes and ears |
| ________ receptors collect info from the enviroment? | sensory |
| When the brain becomes aware of sensory impule it is known as a? | sensation |
| 5 types of receptors | 1. chemoreceptors2. painreceptors3. thermoreceptors4. mechanoreceptors5. photoreceptors |
| what receptor respond to light | photoreceptors |
| what receptor resonds to pressure | mechanoreceptors |
| chemical concentration changes are detected by | chemoreceptors |
| temperature changes are detected by | thermoreceptors |
| what receptor responds to tissue damage | pain receptors |
| what is meant by the term projection when discussing sensation | brain pinpoints where sensation is coming from |
| what is meant by sensory adaptation | ability to adapt |
| what is needed for the impule to continue to trigger an impule | stronger stimulus |
| 3 groups of senses considered general sesnes. | 1. exteroreceptive2. viscerorecptive3.proprioreceptive |
| ____ senses sense changes in the viscera, such as blood pressure | visceroreceptive |
| senses associated with changes in tendons and muscles are called | proprioreceptive |
| temp, pain, and touch are associated with what senses | exteroceptive |
| _____ corpuscles detect fine touch in dermis | Meissner's |
| _____ corpuscles detect heavy pressure(pain). | pacinan |
| simplest receptors found in the epithelial tissue are known as | free nerve endings |
| ___ receptors respond to temp. below 50 | pain |
| ___ receptors respond to temp between 50 and 68 | cold |
| ___ receptors resond to temp between 77 and 113 | warm |
| receptors resond to temp above 113 | pain |
| describe the pain receptors in brain tissue | lacks pain receptors |
| how do pain adapt to repeated impules of pain | very little if at all |
| describe what is known as referred pain | pain is not pinpointed |
| dull, aching pain is carried by | chronic pain fibers |
| sharp pain is carried by | acute pain fibers |
| acute pain fibers carry impules more quickly because they are | myelinated(insulated) |
| the what of the brain determines the intensity of the pain, and the emotional and motor reaction to the pain. | cerebral cortex |
| list 3 pain killing substances produces by the body | 1. enkephlins 2. serotonin 3. endorphins |
| where in the body are stretch receptors found | muscles and tendons |
| name four special senses | tates, smell, hearing, sight |
| four step pathway of an olfactory impule | olfactory nerve- olfactory bulb- olfactory tracts- limbic system |
| spicy food activate____ receptors | pain |
| another name for eardrum? | tympanum membrane |
| outer ear the catches vibrations | auricle |
| the area of the ear that contains the ceruminois glands is the | external auditory meatus |
| auditory ossicles | malleus. incus. stapes |
| ____ tube empties into the pharynx and keeps pressure equal on both sides of the eardrum | auditory |
| the actual hearing organ of the inner ear is the | cochlea |
| the what and what are associated with equilibrium | the semicircular canals and vestibule |
| ____ equilibrium means determining body position while only head is moving | dynamic |
| list 3 visual accessory organs | eyelids. lacrimal apparatus. extrinsic eye muscles. |
| term for eyelid | palpebra |
| closing the eyelid is the | orbicularis oculi |
| opening the eyelid is the | levator palpebre superious |
| lining eyelid | conjuctiva |
| what glands secrete oil onto eyelashes | tarsal |
| tears produced by what gland | lacrimal |
| where are the lacrimal glands located | superior lateral side |
| emptying tears into the nasal cavity is the? | nasolacrimal duct |
| light is first refracted by the ____ as it enters the eye | cornea |
| the protective outer white layer of the eye | sclera |
| extra light that enters the eye that dilates and constricts the pupil | iris |
| the lens is moved for focusing by the | ciliary body |
| the second refracting layer found in the eye is biconvex lens called | lens |
| inner layer of the eye that contains the rods and cones is | retina |
| gel that holds the lens in place is | vitreous humor |
| the area of the retina that produces the sharpest image | fovea centralis |
| ____ shaped lens causes light rays to diverge | concave |
| ___ shaped lens causes light rays to converge | convex |
| describee actual image being focused upon the retina | upside down and reversed left to right |
| ____ cells detect color vision | cones |
| ____ cells detect light | rods |
| name the 3 pigments found in cone cells | erythrolabe(red). chlorable(green). cyanolabe(blue) |
| steroscopic vision provides perception of ___ and ____ | distance and depth |
| list 3 age related visual problems | glaucoma, cataracts, mascular degeneration |
| near sightedness called? | myopia |
| farsidedness? | hyperpia |
| in myopia, where is focal point of image located with respect to retina? | front |
| in hyperpia where is the focal point of the image located? | back or beyond retina. |
Created by:
Mollie28
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