Nerve Fiber Quiz Flashcards Preview

Board Review CRNA (Sweat Book) > Nerve Fiber Quiz > Flashcards

Flashcards in Nerve Fiber Quiz Deck (29):
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

The neurotransmitter for C-fibers, ____________, binds to __________ receptors on the postsynaptic membrane.

substance P; NK-1