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Transformations in the Facial Region of the Human Embryo by Dr. Christl Vermeij-Keers (auth.) is a nonfiction available to read on EtoBox.

What is Transformations in the Facial Region of the Human Embryo about?

The human face is invariably interesting, even as an object of embryologic analysis. The early embryonic growth processes are located around the developing sense organs, among which the nose holds a key position. The first indication of the development of the nose is the formation of the placodes, oval areas of thick ened and condensed ectoderm, one on each side of the head. Each of these placodes is transformed, via the nasal groove, into the nasal tube, sometimes indicated as primitive nasal cavity. In the literature this transformation has been described as an isolated process that changes the superficial facial region. Some authors, including Wolgensinger (1950), think that the active component of this trans formation primarily is the ectoderm of the nasal placode. Others, i. e. Hochstetter (1891), Kallius (1905) and Vermeij-Keers (1967), assume this component be located in the mesenchyme. Peter (1913, 1949), Patten (1953, 1961), Warbrick (1960), and Andersen and Matthiessen (1967) hold both these components to be active. In the first and last of these three concepts the ectoderm of the nasal placode and the nasal groove respectively, is thought to invade the mesenchyme in the

Who reads Transformations in the Facial Region of the Human Embryo?

Author

Dr. Christl Vermeij-Keers (auth.)

Publisher

Springer-Verlag Berlin Heidelberg

Published

1973

Language

EN

ISBN

9780387060880

Category

nonfiction

Subjects

Science, Medical, Medicine