Defecation reflex can be consciously inhibited by:
Correct answer: A. Outer anal sphiniter
- A. Outer anal sphiniter
- B. Both outer and inner anal sphiniters
- C. Inner and sphiniter
- D. Connot be inhibited
Explanation
Therefore, the correct answer is B) Both outer and inner anal sphincters, as conscious contraction of both sphincters can inhibit the defecation reflex.
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The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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