Anatomy & Histology · single question
Which type of nerve fiber is affected in dull, aching pain?
Show answer and explanation
Correct answer: A. C fibers (unmyelinated)
- A. Correct. C fibers are small, unmyelinated nerve fibers that transmit slow, dull, aching, burning, poorly localized pain.
- B. A-delta fibers are myelinated and transmit fast, sharp, well-localized pain — not dull/aching pain.
- C. A-beta fibers primarily transmit touch/pressure sensation, not pain.
- D. B fibers are preganglionic autonomic fibers, not primarily pain-transmitting somatic sensory fibers.
Practice Anatomy & Histology questions Anatomy & Histology study notes