Invagination and Evagination: A Hydromechanical Model

Invagination and Evagination: A Hydromechanical Model It has been proposed that processes of invagination and evagination be considered in the context of a single, “hydromechanical,” model. The model is based on the assumption that the structures demonstrating invaginations and evaginations are closed systems capable of changing their intracavitary pressure in an autonomous regime. The mass, which occupies the cavity, should overcome the resistance of the surrounding membrane during its growth. In places of the weakest resistance, the inner mass expands especially quickly: it bulges out. If the pressure under the membrane is less than the exterior one, the process goes in the opposite direction: the outer mass intrudes (invaginates) into the cavity, causing its wall to sag in the weakest regions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Invagination and Evagination: A Hydromechanical Model

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1023/A:1013816927438
Publisher site
See Article on Publisher Site

Abstract

It has been proposed that processes of invagination and evagination be considered in the context of a single, “hydromechanical,” model. The model is based on the assumption that the structures demonstrating invaginations and evaginations are closed systems capable of changing their intracavitary pressure in an autonomous regime. The mass, which occupies the cavity, should overcome the resistance of the surrounding membrane during its growth. In places of the weakest resistance, the inner mass expands especially quickly: it bulges out. If the pressure under the membrane is less than the exterior one, the process goes in the opposite direction: the outer mass intrudes (invaginates) into the cavity, causing its wall to sag in the weakest regions.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Oct 13, 2004

References

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