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The thyroid gland first appears in the phylogenic scale in the Lamprey larva, Ammocoetes, at the time of metamorphosis (see review by Constantinescu, 1972). In higher Vertebrates the adult thyroid gland consists of vesicles i. e. thyroid follicles containing colloid and lined with a cubic or prismatic epithelium. Since the end of the 19th century, many authors have studied the morphoge nesis of the follicles during the embryonic and fetal development of the gland in Man and other species, principally Chick, Rat and Rabbit. The development of techniques for culturing organs of higher animals, in particular the thyroid by Carrel and Burrows (1910) and Champy (1914, 1915), allowed the study of the survival in vivo or in vitro of grafts or explants of thyroid gland obtained from adult or fetal animals. In addition to organotypic cultures, techniques for culturing cell suspensions obtained by enzymatic dissociation have recently been refined. Moreover, histological examination of pathological human glands and adult thyroids experimentally stimulated by thyrotropin hormone (TSH) has provided additional data for the understanding of thyroid follicle morphogenesis.
This book is the culmination of an international collaboration of zoologists to describe the embryology of Xenopus, including the origins of the organ systems, with the purpose of promoting the use of Xenopus as a model amphibian for embryological study.
Amphibians and reptiles are the most numerous, diverse, and frequently encountered animals on the Caribbean islands. This book provides a variety of perspectives on this amazing group of organisms. Caribbean Amphibians and Reptiles, compiled by an international team of zoologists, takes a fresh and detailed look at the complex biological puzzle of the Caribbean. The first true overview of the islands, it includes a historical examination of the people who have studied the Caribbean amphibians and reptiles. The book reviews the ecology, evolutionary history, and biogeographic explanations for the origins and diversity of the region's fauna with island-by-island coverage. It puts the Caribbean in perspective by comparing the islands to Central America and its amphibian reptile diversity. Additionally, the book includes figures, tables, and color plates which bring to life some of the region's most spectacular creatures.Key Features* Presents the first complete review of amphibians and reptiles in the Caribbean* Includes color plates and island maps* Contributors are recognized authorities in the field
Vols. 5-6, 11-13 have supplement: Symposium on development and growth.
Includes section, "Recent book acquisitions" (varies: Recent United States publications) formerly published separately by the U.S. Army Medical Library.