Multiple Choice
Contraction of which of the following aid in defecation?
1) external anal sphincter
2) circular colon muscles
3 longitudinal rectal muscles
4) internal anal sphincter
5) diaphragm
6) abdominal muscles
A) 2, 3, 5, 6
B) 1, 2, 3, 4
C) 1, 2, 4
D) 3, 5, 6
Correct Answer:

Verified
Correct Answer:
Verified
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