Severe chronic pain in the absence of a recognizable pain stimulus is classified as
A) psychophysiological .
B) analgesic.
C) neuropathic.
D) pheromonal.
E) psychophysical.
Question 2
Morphine is an
A) analgesic.
B) opiate.
C) endogenously produced.
D) both A and B
E) both A and C