Anus devepment video

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About Translations. Note that the cloaca in mammals is an early embryonic transient structure and only persists in birds and reptiles. Located at the superior end of the cloaca is the allantois , that extends into the connecting stalk and later the placental cord. Located at the inferior end of the cloaca is the cloacal membrane , that also forms part of the embryo surface.
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Pediatric Imperforate Anus Pull-Through Procedure

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Embryology, Rectum and Anal Canal - StatPearls - NCBI Bookshelf

NCBI Bookshelf. Justyn Nakashima ; Hassam Zulfiqar. Authors Justyn Nakashima 1 ; Hassam Zulfiqar 2. The rectum initiates the terminal section of the large intestine at the level of the S3 vertebra, just after the sigmoid colon. Approximately 15 cm long, it is characterized by the cessation of the omental appendices and the absence of teniae coli and haustra.
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Cloaca Development

Steven Rothenberg. Imperforate anus repair is surgery to correct birth defects involving malformation of the rectum and anus. Normally, the large intestine colon empties into a pouch-like portion of bowel rectum. Through complex nerve and muscle structures, the rectum releases stool through the anus out of the body.
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