Embryology and Development — Flashcards

If the regression of left posterior and common cardinal vein is absent, it may lead to the formation of a _____

_____ are congenital cysts that arise from abnormal detachments of primitive foregut

Which chorionic villi contain an outer layer of syncytiotrophoblast and a central core of cytotrophoblast?_____

The secondary ossification centres of the head end of the femur appear at _____ month after birth

Do ear ossicles attain adult size before or after birth?_____

The vaginal fornices are of _____ origin.

What are the pharyngeal pouch derivatives of the first arch?_____

The corneal stroma, keratinocytes and endothelium are formed from the _____ derm

As lens fibers grow anteriorly and posteriorly, a pattern emerges where the ends of the fibers meet known as _____.

What is the first germ layer to form?_____