Flashcards in Nerve Fiber Quiz Deck (29)
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1
Name the different types of nerve fibers.
A--> alpha, beta, gamma, delta
B
sC
dC
2
Name the fibers that are myelinated.
all except sC and dC;
A-alpha, beta, gamma, delta
B
3
List the fibers in order from largest to smallest in diameter.
A-alpha, A-beta, A-gamma, A-delta, Beta, dC, sC (the last two are close)
A-a= 12-20 microns
A-b= 5-12 microns
A-g= 3-6 microns
A-d= 1-4 microns
B= <3 microns
sC= 0.3-1.3 microns
dC= 0.4-1.2 microns
4
Name the function of the fiber listed below:
A-alpha
motor (efferent) and sensory (afferent) to skeletal muscle and joints
5
Name the function of the fiber listed below:
A-beta
motor (efferent) and sensory (afferent) to skeletal muscle and joints
6
Name the function of the fiber listed below:
A-gamma
motor (efferent) to muscle spindles
7
Name the function of the fiber listed below:
A-delta
sensory (afferent)
8
Name the function of the fiber listed below:
B
preganglionic autonomic neurons
9
Name the function of the fiber listed below:
sC
postganglionic sympathetic neurons
10
Name the function of the fiber listed below:
dC
afferent (sensory)
11
Name the transmitted sensation for the fiber listed below:
A-alpha
muscle length, muscle force, proprioception (position sense), somatic motor neurons
12
Name the transmitted sensation for the fiber listed below:
A-beta
proprioception (position sense), touch, pressure
13
Name the transmitted sensation for the fiber listed below:
A-gamma
skeletal muscle tone--> because its function is muscle spindles
14
Name the transmitted sensation for the fiber listed below:
A-delta
pain, temperature, and touch--> because function is sensory (afferent)
15
Name the transmitted sensation for the fiber listed below:
B fibers
various autonomic functions--> function is preganglionic autonomic neurons
16
Name the transmitted sensation for the fiber listed below:
sC
various autonomic functions--> function is postganglionic sympathetic neurons
17
Name the transmitted sensation for the fiber listed below:
dC
various autonomic functions, pain, temperature, touch--> sensory (afferent)
18
_________ efferents adjust skeletal muscle force and length.
A-alpha
19
What fibers are responsible for proprioceptions?
A-alpha and A-beta sensory fibers
20
What type of fiber carries sensations of throbbing pain and temperature?
dC fibers
21
______ fibers carry sensations of sharp, prickling pain and temperature.
A-delta--> sensory (afferent)
22
Sympathetic and parasympathetic preganglionic neurons are _______ fibers.
B fibers
23
Postganglionic sympathetic neurons are _____ fibers.
sC fibers
24
_______ nerves conduct action potentials at greater velocities than ______ nerves.
myelinated vs unmyelinated
25
T/F? The larger diameter nerve fibers conduct action potentials at greater velocities than smaller diameters.
TRUE
26
Neurotransmitter for A-delta?
glutamate
27
The neurotransmitter for A-delta, _____________, binds to _________ and ________ receptors on the postsynaptic membrane.
glutamate; AMPA and NMDA
28
Neurotransmitter for C fibers?
substance P
29
