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Sensory Receptors (General Senses (stimulus type (thermoreceptors (cold,…
Sensory Receptors
General Senses
Exteroceptors-external stimuli
proprioceptors-muscoloskeletal organ stimuli
Interoceptors- internal viscera stimuli
stimulus type
chemoreceptors
chemical
nociceptors
pain
photoreceptors
light
mechanoreceptors
pressure
thermoreceptors
cold
warm
baroreceptors
blood pressure
Special Senses
eye
fibrous layer
sclera(white of the eye)
gives shape
anchor for muscle
-protective
cornea(transparent)
-allows light into eye
-helps focus light
avascular
vascular layer
choroid(black)
-vascular
-absorbs and prevents scattering of light (melanocytes)
nourishes other tunics
-continuous with ciliary body
inner layer
retina
photoreceptors
rods
sensitive to (dim) light
cones
optimal in bright light
stimulus origin