UARK human physiology term quiz 2
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chemoreceptor Ans: sensory receptor interprets chemical
stimuli in blood and other body fluids
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photoreceptor Ans: sensory receptor on retinas interpret light
stimuli (rods and cones)
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thermoreceptor Ans: sensory receptor sensitive to
temperatures above or below normal body temperature
mechanoreceptor Ans: sensory receptor that responds to
physical stimuli (ex. pressure and vibration)
nociceptor Ans: sensory receptor interprets mechanical
deformation, extreme temperatures and chemicals
stimulus Ans: change in environment that can cause a physical
or behavioral response in an organism
receptive field Ans: specific area on body surface where
stimulus can activate sensory neuron, firing an electrical
signal
lateral inhibition Ans: the reduction of activity in one neuron
by activity in neighboring neurons
referred pain Ans: visceral/somatic afferent neurons
converging on same spinal cord neurons