PTRS 852: Somatosensory Flashcards
Where are sensory receptors located on neurons?
Distal end
Term: Mechanoreceptor
Respond to mechanical deformation by touch, pressure, stretch or vibration
Term: Chemoreceptor
Respond to substances released by cells
Term: Thermoreceptor
Respond to heat or cold
Term: Nociceptor
A receptor sensitive to stimuli that may result in danger resulting in pain sensation
T/F: Receptive fields are smaller distally on the body.
True
Receptor: Muscle spindle (Ia)
Proprioceptive receptor sensitive to muscle stretch
Receptor: Golgi tendon (Ib)
Proprioceptive receptor sensitive to tendon tension
Receptor: Ligament receptors (Ib)
Proprioceptive receptor sensitive to ligament tension
Receptor: Muscle spindles (II)
Proprioceptive receptor sensitive to muscle tension
Receptor: Paciniform & Ruffini type (II)
Proprioceptive receptor sensitive to joint mov’t
Receptors: Meissner’s & Pacinian (A beta)
Cutaneous receptors sensitive to touch and vibration
Receptor: Ruffini’s (A beta)
Cutaneous receptor sensitive to skin stretch
Receptor: Merkel’s & Hair follicles (A beta)
Cutaneous receptors sensitive to pressure
Receptor: Free Nerve Ending (A delta)
Pain/Temp receptor sensitive to tissue damage/temp/coarse touch