Assuming that midline epigastric pain is caused by a stimulus acting on an abdominal organ, the pain felt is classified as:
a. visceral.
b. somatic.
c. parietal.
d. referred.
ANS: A
Visceral pain arises from a stimulus (distention, inflammation, and ischemia) acting on an ab-dominal organ. Somatic is a form of parietal pain. Parietal pain, from the parietal peritoneum, is more localized and intense than visceral pain, which arises from the organs themselves. Referred pain is visceral pain felt at some distance from a diseased or affected organ.
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