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