The Development of the Chondrocranium of Gallus gallus

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Editors . F. Beck, Leicester W. Hild, Galveston W. Kriz, Heidelberg R. Ortmann, KOln J.E. Pauly, Little Rock T.H. Schiebler, Wiirzburg

Willie Vorster

The Development of the Chondrocranium of Gallus gallus With 37 Figures

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Springer-Verlag ~ I Berlin Heidelberg New York __~ U London Paris Tokyo

Dr. Willie Vorster Department of Anatomy and Histology Faculty of Medicine, University of Stellenbosch P.O.Box 63, Tygerberg 7505, South Africa

ISBN-13: 978-3-540-50185-5 DOl : 10.1007/978-3-642-73999-6

e-ISB'I-13 : 978-3-642-73999-6

Library of Congress Cataloging-in-Publication Data Vorster, Willie, 1946The development of the chondrocranium of Gallus gallus / Willie Vorster. p. em. - (Advances in anatomy, embryology. and cell biology: vol. 113) Bibliography: p. 1. Chondrocranium-Development. 2. Chondrocranium-Growth. 3. ChickensDevelopment. 4. Chickens-Growth. 5. Birds-Development. 6. BirdsGrowth. I. Title. II. Series: Advances in anatomy, embryology, and cell biology; v. 113. [DNLM: 1. Chickens- growth & development. 2. Skullgrowth & development. WI AD433K v. 113/QL 898.82 V956d] QL801.E67 vol. 113 [QL822] 574.4s-dcI9 [598'.617] DNLM/DLC 88-24921 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in other ways, and storage in data banks. Duplication of this publication or parts thereof is only permitted under the provisions of the German Copyright Law of September 9, 1965, in its version of June 24, 1985, and a copyright fee must always be paid. Violations fall under the prosecution act of the German Copyright Law.

© Springer-Verlag Berlin Heidelberg 1989 The use of general descriptive names. trade names. trade marks, etc. in this publication, even if the former are not especially identified, is not to be taken as a sign that such names, as understood by the Trade Marks and Merchandise Marks Act, may accordingly be used freely by anyone. Product Liability: The publisher can give no guarantee for information about drug dosage and application thereof contained in this book. In every individual case the respective user must check its accuracy by consulting other pharmaceutical literature. Typesetting, printing and binding: Universitiitsdruckerei H. Sturtz AG, Wurzburg 2121/3140-543210 - Printed on acid-free paper

Contents

1

Introduction .

2

Material and Technique .

3

3

Description of Developmental Stages

5

3.1 3.1.1 3.1.2 3.1.3

Stage I The Basal Plate and Otic Capsules . The Anterior End of the Chondrocranium The Visceral Arches

5 5 9 11

3.2 3.2.1 3.2.2 3.2.3

Stage II. The Basal Plate and Otic Capsules . The Anterior End of the Chondrocranium The Visceral Arches

13 13 15 19

3.3 3.3.1 3.3.2 3.3.3

Stage III The Basal Plate and Otic Capsules . The Anterior End of the Chondrocranium The Visceral Arches

21 21 27 32

3.4 3.4.1 3.4.2 3.4.3

Stage IV The Basal Plate and Otic Capsules . The Anterior End of the