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The puborectalis muscle provides a ring of support around the anal canal at the

small end of the funnel made by the levator ani muscle. It has a "U" shaped

configuration creating an angle between the anal canal and the rectum. Under resting conditions this angle is 90°, but during straining and moving your bowels this angle moves to 135 °. If these angles are not correct, it may become more difficult to have a bowel movement.

A bowel might be in a wrong angle because of a birth-defect. Also if you are upside-down the bowels would be in a wrong angle.

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12y ago

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