• Welcome to MedTactics ...

Q787

This question is part of the USMLE QBANK

The Free question bank contains hundreds of free MCQs with answers.

Feel free to browse through the questions and if you feel the need to contact us, don't hesitate.


Page 1 of 1

1. A newborn boy does not pass meconium until 48 hours after his birth . Two weeks later his mother reports that he has not been passing stool regularly. Anorectal manometry reveals increased internal anal sphincter pressure on rectal distention with a balloon. Radiographic studies revea l massive dilation of the colon proximal to the rectum. This indicates a developmental abnormality in which of the following embryonic tissues?
A.
B.
C.
D.
E.


 

Leave a Reply

Your email address will not be published. Required fields are marked *