Define sensation.
CONSCIOUS PERCEPTION OF A STIMULUS
Define modality.
FORM OF STIMULI
Define proprioceptor.
DETECT BODY/LIMB MOVEMENTS AND INCLUDE ONLY SOMATIC SENSORY RECEPTORS IN JOINTS, MUSCLES, AND TENDONS
Nociceptor:
DETECT PAIN
Which detects light touch?
TACTILE DISC
Choroid:
SUPPLIES NUTRIENTS TO RETINA; ABSORB SOME LIGHT
Rods:
FUNCTION IN DIM LIGHT
Cones:
FUNCTION IN BRIGHT LIGHT