Sensory Neuron Fiber Types Flashcards
1
Q
what are the four sensory neuron fiber types? and alternative names
A
A, alpha
A, beta
A, gamma
C
or I-IV
2
Q
what is fiber diameter of these sensory neuron fiber types?
A
largest from Alpha sensory neuron to smallest C sensory neuron. Sizes below
alpha 13-20
beta 6-12
gamma 1-5
C 0.2-1.5
3
Q
which of the sensory neuron fibers are myelinated?
A
all but C sensory neuron
4
Q
what are the receptors for A-alpha?
A
muscle spindle -propioception
golgi tendon organ-propioception
5
Q
what are the receptors for A-beta?
A
muscle spindle - proprioception meissner's corpuscle - superficial touch merkel's receptor - superficial touch pacinian corpuscle - deep touch, vibration ruffini ending - deep touch, vibration hair receptor - touch vibration
6
Q
what are the receptors for A-gamma?
A
bare nerve ending - pain
bare nerve ending - temp (cool)
7
Q
what are the receptors for C?
A
bare nerve ending - pain
bare nerve ending - temp (warm)
bare nerve ending - itch
