Nerve Fibers

Question 1

A-alpha fibers

Answer 1

• Proprioception
• Motor
• Myelinated

Question 2

A-beta fibers

Answer 2

• Touch and pressure sensations
• Myelinated

Question 3

A-delta fibers

Answer 3

• Sharp pain and temperature (pain, cold, touch)
• Myelinated

Question 4

A-gamma fibers

Answer 4

• Motor to muscle spindles
• Muscle tone
• Myelinated

Question 5

B fibers

Answer 5

• Autonomic functions
• Preganglionic sympathetic
• Myelinated

Question 6

C fibers

Answer 6

• Dull, burning, and itch sensations (pain, hot, reflex)
• Unmyelinated