Dull visceral pain is carried by which
type of neurons?
a) A gamma
b) Aa
c) C fibres
d) B
Correct Answer - C
Ans. C. “C” fibers.
[Ref Ganong 24th\e p. 92 & 23rdle p. 89]
A viscus does not have any other sensation (e.g. touch, temperature
etc) except pain.
Due to sparse distribution of pain receptors, visceral pain is poorly
localized.
Visceral pain sensation is carried by type - C afferents in the
sympathetic system (from thoracic and abdominal viscera) and
parasympathetic system (from pelvic viscera).