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What Forms the Definitive Anorectal Canal

Question 10

Multiple Choice

What forms the definitive anorectal canal?


A) It is completely derived from the distal hindgut.
B) Two thirds of the anorectal canal is derived from the hindgut, and one third is from the anal pit.
C) It is completely derived from the anal pit.
D) It is entirely derived from the cloacal membrane.
E) It is entirely derived from the urogenital sinus.

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