Pigment cells Melanocytes of dermis, mesenteries, internal organs, epidermis etc. Some participation in striated muscles of facial and visceral region Tooth papillae Meninges of prosencephalon, mesencephalon Derivatives of Neural Crest - Extracted from Le Douarin. To know the derivatives of the neural crest. Understand the developmental basis of certain congenital anomalies of the neural crest 3. There will be a discussion and paper review on the neural crest.
Temporary relief is obtained by making a colostomy proximal to the obstruction.
The child will then thrive normally until fit for resection of the aganglionic segment, restoration of anal continuity and closure of the colostomy. D - The Duhamel Operation. This is a modified form of the resection operation. No associated malformations. E. The Okamoto and Ueda demonstration.