A Guide For The Dissection Of The Dogfish
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A Guide For The Dissection Of The Dogfish Squalus Acanthias
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Author : Lawrence Edmonds Griffin
language : en
Publisher: Good Press
Release Date : 2019-12-16
A Guide For The Dissection Of The Dogfish Squalus Acanthias written by Lawrence Edmonds Griffin and has been published by Good Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-16 with Science categories.
In "A Guide for the Dissection of the Dogfish (Squalus Acanthias)," Lawrence Edmonds Griffin presents a meticulously crafted exploration of the anatomy of the dogfish, using a clear and systematic approach that is both informative and instructive. The text is carefully structured to guide students and educators through the dissection process, combining rich descriptions with illustrative diagrams. Griffin's precise language and scientific rigor reflect the demands of early 20th-century educational practices in zoology, positioning the work within the contextual framework of then-contemporary biological study and pedagogy. Lawrence Edmonds Griffin was a noted zoologist and educator with a deep commitment to marine biology and a passion for making complex biological concepts accessible to students. His rich background in anatomical studies, paired with his firsthand experience in laboratory education, inspired him to provide an indispensable resource that equips learners with essential knowledge about the dogfish, a species representative of elasmobranch fish. Griffin'Äôs work is a testament to the educational philosophies of the period, emphasizing experiential learning through direct observation and practical application. Highly recommended for students, educators, and marine biology enthusiasts, Griffin'Äôs guide not only serves as a valuable resource for dissections but also enriches understanding of vertebrate anatomy within a broader ecological context. This book fosters an appreciation for marine life and invites readers to engage with the intricacies of biological science.
A Guide For The Dissection Of The Dog Fish
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Author : Lawrence Edmonds Griffin
language : en
Publisher:
Release Date : 1907
A Guide For The Dissection Of The Dog Fish written by Lawrence Edmonds Griffin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1907 with Dogfish categories.
Guide For The Dissection The Dogfish
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Author : Lawrence Edmonds Griffin
language : en
Publisher:
Release Date : 1937
Guide For The Dissection The Dogfish written by Lawrence Edmonds Griffin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1937 with Dogfish categories.
Laboratory Guide To Vertebrate Dissection For Students Of Anatomy
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Author : Arthur Beeny Appleton
language : en
Publisher: CUP Archive
Release Date : 1929
Laboratory Guide To Vertebrate Dissection For Students Of Anatomy written by Arthur Beeny Appleton and has been published by CUP Archive this book supported file pdf, txt, epub, kindle and other format this book has been release on 1929 with Anatomy, Comparative categories.
As its title indicates, this is a book for use in a practical comparative anatomy course. It is intended for a somewhat unusual class of student, and consequently its contents, outlook, and method of treatment are unlike those of the standard texts in this subject. As stated in the preface, it is assumed that the student has already done a course in elementary zoology, including the usual verte-brate types, and has also examined in more detail a mammal. Unless this mammal were man, a number of comparisons in the book would be missed. To obtain full benefit from it the student should obviously have taken the preliminary medical studies, including a fair amount of human anatomy. This is not meant to imply that the student of advanced zoology cannot get many useful hints and fresh points of view from its pages; he undoubtedly can. The types, treated in a series of regional dissections, are the lamprey, the dogfish (Squalus), Necturus, the lizard, and the dog. As it is intended for assistance in dissection, information regarding osteology and the details of the central nervous system have been purposely omitted and, conversely, the muscles are treated somewhat more fully than is customary.
A Guide For The Dissection Of The Dogfish
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Author : Lawrence Edmonds Griffin
language : en
Publisher: Theclassics.Us
Release Date : 2013-09
A Guide For The Dissection Of The Dogfish written by Lawrence Edmonds Griffin and has been published by Theclassics.Us this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09 with categories.
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ... attaching fold of the peritoneum is frequently called the suspensory ligament. The peritoneum, or coelomic epithelium, can be dissected easily from the surface of the liver or the kidney and its extreme thinness and delicacy noted. It consists of a single layer of cells. Most of the abdominal organs are suspended from the dorsal wall of the body cavity by delicate membraneous sheets, or mesenteries. Similar sheets between the organs are the omenta. The stomach is suspended by a mesogaster, which extends as a free fold along the body as far as the anterior mesenteric and lienogastric arteries. It encloses these, and is attached to the spleen, pancreas, stomach, and anterior end of the intestine. The spleen is connected with the stomach by the gastro-splenic omentum, formed by an extension of the peritoneal coat of the stomach around the spleen. The liver is connected to the loop of the stomach by the gastro-hepatic omentum in which are the hepatic duct, portal vein, and hepatic artery. Near the stomach it is joined by a fold of the peritoneum from the duodenum, the duodeno-hepatic omentum, which also unites with the mesogaster. The rectum and rectal gland are supported by a second median mesentary, the mesorectum. In Eugaleus the mesentery extends the entire length of the abdominal cavity. It forms a broad sheet attached to the anterior end of the proximal limb of the stomach (mesogaster), to the anterior end of the intestine (mesentery proper), and to the rectum (mesorectum). There is not the reduction of the mesentery which there is in Squalus. The gonads are suspended from the lateral faces of the mesentery above the stomach and intestine. The gastrohepatic omentum forms a broad sheet between the limbs of the stomach, joining the...
How To Dissect
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Author : William Berman
language : en
Publisher: Simon and Schuster
Release Date : 1985-06
How To Dissect written by William Berman and has been published by Simon and Schuster this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-06 with Juvenile Nonfiction categories.
A guide for dissecting animals, beginning with the earthworm and progressing to more complex anatomies such as grasshopper, starfish, perch, and ultimately a fetal pig. Includes a chapter on dissecting flowers.
Anatomy Of The Cat
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Author : Jacob Reighard
language : en
Publisher: Good Press
Release Date : 2019-12-12
Anatomy Of The Cat written by Jacob Reighard and has been published by Good Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-12 with Science categories.
In 'Anatomy of the Cat,' the profound nuances of feline physiology and behavior are explored through an anthology that bridges scientific inquiry with literary finesse. The collection's thematic core revolves around the intricacies of cat anatomy, offering readers a panoramic view of the scientific, anatomical, and even philosophical dimensions underlying this subject. The diverse range of styles in the anthology'Äîfrom technical dissections to reflective essays'Äîilluminates the multifaceted character of the cat, inviting readers on an intellectual journey through the mysterious world of these beloved creatures. Contributing to this collection are authors Jacob Reighard and H. S. Jennings, both respected figures in their respective fields. Their collaborative effort brings together an impressive array of research and thought, reflective of broader historical movements in zoological and physiological studies of the early 20th century. By juxtaposing the perspectives of a comparative anatomist with those of a zoologist, the anthology effectively encapsulates a period when scientific explorations were increasingly accompanied by a reverence for detailed observation and empirical understanding. These varied voices crafts a narrative that is both harmoniously scientific and poetically detailed. Readers will treasure 'Anatomy of the Cat' for its comprehensive exploration of feline anatomy, providing a rich tapestry of thought that extends beyond mere scientific observation to encompass broader existential musings. The anthology presents a unique chance to encounter a collage of insights, each piece contributing to a larger dialogue informed by the distinct viewpoints of its authors. This collection is particularly recommended for those seeking a deeper understanding of the complexities of life forms through the lens of interdisciplinary scholarship, promising to both educate and inspire with its breadth and depth.
A Guide For The Dissection Of The Dogfish Squalus Acanthias
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Author : Lawrence Edmonds Griffin
language : en
Publisher:
Release Date : 1922
A Guide For The Dissection Of The Dogfish Squalus Acanthias written by Lawrence Edmonds Griffin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1922 with Dogfish categories.
Pamphlets On Biology
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Author :
language : en
Publisher:
Release Date : 1867
Pamphlets On Biology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1867 with categories.
A Guide For The Dissection Of The Dogfish Squalus Acanthias
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Author : Lawrence E. Griffin
language : en
Publisher: Forgotten Books
Release Date : 2015-06-15
A Guide For The Dissection Of The Dogfish Squalus Acanthias written by Lawrence E. Griffin and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-15 with Science categories.
Excerpt from A Guide for the Dissection of the Dogfish (Squalus Acanthias) The spindle-shaped body tapers from near the middle toward both head and tail; the head is flattened on both the dorsal and ventral sides, while the remainder of the body is nearly round, with a lateral compression which is not pronounced except in the caudal portion. The general color of the back and sides is gray; darkest above, where the skin is spotted with scattered, small, round, light spots. The color of the upper parts shades into the yellow white of the ventral surface. Can head, trunk, and tail regions be distinguished? If so, what characters determine the extent of each? A little above the middle of the side of the body is the lateral line, (distinguished partly by color, partly by being slightly elevated), which extends from the back of the head to the tail. Cut through the skin across the lateral line at several points along the body and notice the canal which lies in the dermis under the lateral line. This is the lateral line canal, which opens to the surface by numerous pores (too minute to be seen), and contains a series of special sense organs along its dorsal and inner surfaces. Near the base of the caudal fin the lateral line canal passes into a groove which continues the lateral line to within a short distance of the edge of the fin. The lateral line canal in its development begins as a groove along the side of the body which becomes closed by the fusion of its edge except in this terminal portion. The open groove does not appear in Eugaleus. In the midline of the body are two triangular dorsal fins, each attached to the body for about half its length. The basal portion of each is thick and muscular, and contains supporting cartilages embedded in the muscles. The remainder of the fin is flexible and semi-transparent, horny finrays being faintly visible between the layers of skin. In front of each fin is a strong spine which seems to serve both as a cutwater and a weapon of defense. (Eugaleus has no spines.) The broad, paired, pectoral fins, having the general characteristics of the dorsals, spring from the ventral edges of the body just back of the head. A hard bar of cartilage connecting the bases of the pectoral fins can be felt through the skin of the ventral surface of the body. This is the ventral part of the pectoral girdle. Farther back, and also on the ventral surface, are the paired pelvic fins. The pelvic girdle can be felt through the skin between the bases of these fins. If the specimen is a male, it will have a fingerlike process projecting backward from the base and along the inner side of each pelvic fin. These organs, which attain a considerable size in adults, are modified portions of the pelvic fin used as copulatory organs. They are named variously claspers, myxopterygia, or pterygopodia. A groove runs along the dorsal side of the clasper from the tip to near the base, where it opens into a long sac (glandula pterygopodia) extending some distance in front of the pelvic fins just within the skin of the ventral surface. By feeling a cartilaginous axis of the clasper can be discovered, which extends to the tip of the organ. On the dorsal surface and near the end of the clasper is a sharp grooved spine on the outer side, and a strongly recurved hook on the inner side, both almost hidden by a flap projecting from the inner edge of the groove. This flap is stiffened by a series of small cartilages similar to the radial cartilages in the bases of the fins. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com