Eamcet Zoology - Unit- 5 Human Physiology -Excretory System Human Physiology Digestion And Free Online Tests | Mock Tests | Preparation | Practice Tests

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Anus is guarded by

A. Internal anal sphincter of striated muscles and external anal sphincter of smooth muscles

B. Internal anal sphincter of smooth muscles and external anal sphincter of striated muscles

C. Both internal and external anal sphincters of striated muscles

D. Both internal and external anal sphincters of smooth muscles

E. None of the above

View Answer

Correct choice: B

Explanation:

none

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