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10.9_Vestibular.Visual.chemosensory_System - -most common...

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Vestibular System -Info=head position and motion -Components -Semicircular canal -detect movement -direction of head movement -sereocillia -Utricle and Saccule -Linear Acceleration, relative to gravity -Stereocilia with otoliths Visual System -Info= light -Functions -Focus image -Transform into signal -Structure of retina -Receptors at back of eye -signal travels back to light 1) Rods: More active in dim lights. Helps to see black and white 2) Cones: More active in bright light. Help see color -Blue, Red, Green cones -Color vision-based on three pigments
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Unformatted text preview: -most common color blind is Red-Green if “lacking” one pigment-10-20% white males are color blind (only a few females) Chemosensory System-Info= binding of a chemical-Components:-External- taste and smell-Internal- pH, [O2]. And [CO2]-Closely linked to memory and emotion-Better than we think-Taste:-mouth and throat-chemicals must be dissolved-categories:-Salt- Na channels-Sour- H blocks K channels-Sweetness- Sugars bind-Bitter- Various substances bind-Umami- Glutamate/ MSG...
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