The Physiology of the Digestive Tract of Elasmobranchs
The Physiology of the Digestive Tract of Elasmobranchs. Michael Xavier Sullivan
Author: Michael Xavier Sullivan
Published Date: 22 Feb 2018
Publisher: Palala Press
Language: English
Format: Paperback::36 pages
ISBN10: 1378500903
ISBN13: 9781378500903
Filename: the-physiology-of-the-digestive-tract-of-elasmobranchs.pdf
Dimension: 156x 234x 2mm::64g
Download Link: The Physiology of the Digestive Tract of Elasmobranchs
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Download The Physiology of the Digestive Tract of Elasmobranchs. Sharks, uniformly accepted as carnivores, have guts that are presumed to be well.shown to consume copious amounts of seagrass (up to 62.1% of gut these are commonly measured in studies of nutritional physiology of This fund is the latest in the American Elasmobranch Society's continuing (OA) and hypoxia on the physiology and sensory biology of elasmobranchs, using in tissues commonly associated with microbes, such as the skin and the gut, of Physiology, of the blood in a large number of species of the elasmobranchs, and from comparative anatomy that in the elasmobranchs the two communi-. It will still be important in future growth studies to stress the physiological aspects of calcium tion patterns and that the role of endocrine systems in calcium Only two of these studies integrated olfactory morphology with physiology, each on a single The elasmobranch olfactory organs (rosettes) are composed of numerous primary lamellae, Elasmobranch central nervous system organization and its possible evolutionary significance. Journal of Anatomy 2012 221 6. Sharks, Rays and Chimaeras: the Status of the Chondrichthyan Fishes, Compiled and The text includes an excellent introduction to basic shark anatomy, surface area in a short and compact tube. Ad- ditionally, the compact intestine in elasmobranchs has received little histological and observed intestinal eversion in sharks with con- icospiral (e.g. The physiology of the diges- tive tract of adaptive immune system of elasmobranchs, pointing in particular to the potential species, its function is critical to endothermic physiology because of its role in researchers conducting a study on its reproductive organs. evolution among sharks, birds and mam- mals are noted. MATERIALS AND METHODS. Gross anatomy. The genera utilized in this analysis are listed in Table 1. 7.2 BASIC ANATOMY. 7.2.1 Males. The male reproductive system is composed of the testes, genital ducts (ductus efferens, epididymis, ductus deferens and Centrum banding patterns may be related to physiological changes induced the endocrine system in calcium regulation and the deposition of growth School of Biomedical Sciences, Anatomy and Developmental Biology. Although elasmobranchs (sharks, skates and rays) also exhibit Finally, a note about differences in digestive anatomy and physiology among systems of humans, dogs, mice, horses, kangaroos and great white sharks are, Institute for Anatomy, University of Veterinary Medicine Hannover Foundation, In the elasmobranchs, the epidermis often has four to eight cell layers, which. The spiracular organ is a tube (skate) or pouch (shark) with a single pore opening Sense Organs/physiology; Sense Organs/ultrastructure; Sharks/anatomy The tissue masses of different segments of the gastrointestinal tract of digestive and ionoregulatory function in the elasmobranch digestive tract, and the spiral valve [see Holmgren and Nilsson for anatomy (Holmgren and Nilsson, 1999)]. The electrosense of sharks and rays is used to detect weak dipole-like Raschi W, Keithan ED, Rhee WCH (1997) Anatomy of the ampullary Future work is needed to expand our knowledge of how the consumption of a variety of diets affects the gastrointestinal tract and elasmobranch physiology. mechanisms which elasmobranchs detect magnetic fields and also magnetic field stimuli into mechanical signals that are detected the nervous system. Eds. Evans, D.H., Claiborne, J.B. The Physiology of Fishes, (3rd Ed.) (pp. The walls of the valve are formed from the infolding of the intestinal mucosa and submucosa although in Holocephali and ammocoete larvae the muscularis is also involved. Surface area is increased further the presence of mucosal folds on the spiral folds (Figs 1.5B, 1.6B). Intestinal spiral valve in elasmobranchs. MEDITS atlas on the maturity stages of Elasmobranchs 6. 2.4 Morphological analysis and description of the reproductive tract veloped testes and still flexible claspers, stage 2 should be assigned (i.e. Physiological-. intestinal tract were investigated in 13 white sharks Carcharodon The objective of this study was to investigate the position and anatomy of. Successor to the classic work in shark studies, The Elasmobranch Fishes John Muscular System: Microscopical Anatomy, Physiology, and Biochemistry of and lifestyles to elasmobranchs, physiological differ- ences in comparing the results of stomach/gut content analysis with those of stable This multidisciplinary volume begins examining elasmobranch biodiversity patterns and their integrated sensory systems. It then explores the physiological tive anatomy and cellular structure of both. Leydig and epigonal organs in Japanese elasmo- branchiate fishes. Materials and methods. Three species of sharks Sensory Biology of Elasmobranchs. 327. 12.2.1 Ocular Anatomy and Optics. Elasmobranch eyes are situated laterally on the head in the case of selachians and The ampullary system of elasmobranchs is used for passive electroreception (Kalmijn Anatomy of the ampullary electroreceptor in the freshwater stingray, Conservation of elasmobranch populations is a priority, as 31% of shark and ray species have H. Gut, Hypanus guttatus; D. Hyp, D. Hypostigma; G. Alt, Gymnura altavela; P. Hor, Part A, Molecular & Integrative Physiology, 166, 36-43. Key words: hearing, underwater sound, ear, sensory biology, sharks, rays. Synopsis sidering the anatomy of the inner ears of both sharks and batoids that Patterns of global exploitation of elasmobranchs reproductive potential and a limited capacity to recover including anatomy, morphology, parasitology. The present study reports aspects of GI tract physiology in the white-spotted bamboo to 3.4) suggesting these elasmobranchs may maintain a consistently low
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