Upon palpating the anterior abdominal wall of a patient, you notice an intense reflexive muscular contraction in the abdominal muscles. Which of the following is not correct pertaining to this sign?
A) It is called "guarding."
B) It may indicate an inflamed appendix.
C) Functionally, these spasmodic muscular contractions are an attempt to protect the underlying viscera.
D) It is best observed when the patient is perfectly supine.
E) The impulses for muscular contractions are carried through the ventral rami of the inferior thoracic and first lumbar nerves.
Ans: D
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