Chapter reading Flashcards
action potentials are?
nerve impulses
what are the four main modalities of cutaneous sensation?
warmth, touch, cold, and pain
punctuate distribution is?
the random assortment of sense receptors throughout the integumentary system.
areas of the somatosensory cortex that correspond to different regions of the body ____________________?
are of different sizes.
the motor cortex?
controls skeletal muscle movements. located precentral gyrus of the central fissure
large motor areas of the brain are devoted to _____________________?
touch perception and motor activity of the face and hands
smaller areas of the brain are devoted to ________________?
trunk, hips and legs
the density of touch receptors is measured by?
two point threshold test
sense receptors that stop responding to stimuli when stimuli becomes constant is known as ________________?
sensory adaptation
phantom limb phenomenon is when?
amputees report feelings of pain in their missing limbs as if they were still there
sites for referred pain are perceived _________________ but actually originate from specific visceral organs
cutaneously
in ischemic heart disease, pain is refferred to the left pectoral region, and left arm and shoulder area, this is known as?
angina pectoris
