Final Exam
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| raw form in which these receptors send information to the brain | sensation
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| the way the brain interprets the information | perception
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| respond to changers in the concentration of chemical substances | chemoreceptors
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| respond to numerous stimuli and tissue damage | pain receptors
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| sensitive to temperature changes | thermoreceptors
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| respond to light | photoreceptors
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| associated with the changes of body surfaces(touch, pressure, pain, & temperature) | extroreceptive senses
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| changes with viscera(blood pressure, pH, meals) | visceroreceptive senses
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| changes in muscles and tendons and in body position | proreoreceptive senses
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| (simplest) lie between epithelial cells; responsible for the sensation of itching (temperature & pain) | free nerve endings
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| found on lips, fingertips, palms; provides fine touch | meissner's corpuscles
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| (common in deep dermal tissue) detect heavier pressure | pacinian corpuscles
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| body has warm and cold receptors; allows quick adaptation | temperature senses
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| sharp pain; lasts for a few seconds; leaves as soon as stimulus leaves | acute pain
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| dull, aching pain; cannot pin point; localized pain | chronic pain
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| oxygen defficiency | hypoxia
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| blood defficiency | ischemia
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| tells you where pain is coming from | projection
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| pain fomes from another part of the body other than the part being stimulated (example: heart attack) | referred pain
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| blocks substance p which causes pain impulses | enkephalins
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| stimulates other nuerons to release chemicals to fight pain | serotonin
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| blocks substance p; produced by pituitary glands | endorphins
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| bipolar nueron; has microvili, receptor proteins, 12 million cells; 500 different types of chemoreceptoprs | olfactory receptors
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| are molecules such as proteins and glycoreceptors located on the cell membrane | membrane receptors
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| strongest evoker of memory | smell
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| splits impulses down the olfactory tract | olfactory bulb
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| sends impulses to portions of the limbic system | olfactory tract
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| main interpreting areas for the olfactory impulses | cerebral cortex
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| adapt quickly to smell sensations; only nuerons to be replaced on a regular basis and only to come in contact with the external factors | olfactory receptors
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| percent of taste sensation comes from the sense of smell | 75
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| sensory organs for taste; located on cheeks, roof of mouth, tongue, and pharynx | taste buds
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| have microvilli and are modified epithelial cells (not nuerons) | gustatory cells
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| bumps on tongue that has one taste bud | taste pore
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| microvilli on ends of taste cells | taste hairs
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| carbs (tip of tongue) | sweet
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| acidic (lateral of tongue) | sour
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| ionized inorganic salts (widespread) | salty
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| bases and alkaloids, & poisons (back of tongue) | bitter
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cmt14
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