Anatomy and Physiology PDF Download

Author: J. Gordon Betts
Publisher:
ISBN: 9781947172807
Category :
Languages : en
Pages : 0

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Author: Robert D. Odze
Publisher: Elsevier Health Sciences
ISBN: 1416040595
Category : Medical
Languages : en
Pages : 1387

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Book Description
This one-of-a-kind reference provides a comprehensive and practical guide to help you interpret endoscopic biopsies and resection specimens of all organs related to the digestive system. Plus, thanks to Expert Consult, you'll be able to access the entire contents of this title online and download all images, from anywhere there's an internet connection. The more than 2250 high quality illustrations, 30% more than in the first edition, help you recognize and diagnose any tissue sample under the microscope. Five new chapters, additional expert authors, expanded tables, and coverage of the current clinical approach to management and treatment options, particularly screening and surveillance recommendations for preneoplastic disorders, round out this unique reference. Acts as a one-stop resource for the entire gastrointestinal system, liver, biliary tract, and pancreas. Incorporates over 2250 high quality color illustrations so you can recognize and diagnose any tissue sample under the microscope. Provides all the necessary tools to make a comprehensive diagnostic workup including data from ancillary techniques and molecular findings whenever appropriate. Simplifies complex topics and streamlines decision-making using extensive tables, graphs, and flowcharts. Helps you avoid diagnostic errors thanks to practical advice on pitfalls in differential diagnosis. Uses a new "road map" at the beginning of each chapter, as well as a new, more clinical focus to help you navigate through the book more quickly. Reflects the latest classification and staging systems available so you can provide the clinician with the most accurate and up-to-date diagnostic and prognostic indicators, including key molecular aspects of tumor pathology. Includes access to the entire contents online, from anywhere there's an internet connection. Adds five new chapters including "Screening and Surveillance of the GI Tract", "Congenital and Developmental Disorders of the GI Tract", "Pediatric Enteropathies of the GI Tract", "Vascular Disorders of the GI Tract", and "Fatty Liver Disease". Expands appropriate chapters with new coverage of the normal histology of the GI tract, liver, biliary tract and pancreas. Uses expanded tables to outline specific differential diagnostic points helpful for surgical pathologists. Discusses the key molecular aspects of tumor progression and risk assessment in all chapters that cover neoplastic disorders. Helps you evaluate diagnostically challenging cases using diagnostic algorithms. Increases the number of high quality photographs by at least 30% to include even more normal and abnormal tissue samples. Updates all chapters to include the latest references, concepts, data, and controversies. Incorporates expanded coverage of the pancreas and liver, eliminating the need for a separate text. Your purchase entitles you to access the web site until the next edition is published, or until the current edition is no longer offered for sale by Elsevier, whichever occurs first. If the next edition is published less than one year after your purchase, you will be entitled to online access for one year from your date of purchase. Elsevier reserves the right to offer a suitable replacement product (such as a downloadable or CD-ROM-based electronic version) should access to the web site be discontinued.

Author: Sushil K. Sarna
Publisher: Biota Publishing
ISBN: 1615041516
Category : Medical
Languages : en
Pages : 159

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Three distinct types of contractions perform colonic motility functions. Rhythmic phasic contractions (RPCs) cause slow net distal propulsion with extensive mixing/turning over. Infrequently occurring giant migrating contractions (GMCs) produce mass movements. Tonic contractions aid RPCs in their motor function. The spatiotemporal patterns of these contractions differ markedly. The amplitude and distance of propagation of a GMC are several-fold larger than those of an RPC. The enteric neurons and smooth muscle cells are the core regulators of all three types of contractions. The regulation of contractions by these mechanisms is modifiable by extrinsic factors: CNS, autonomic neurons, hormones, inflammatory mediators, and stress mediators. Only the GMCs produce descending inhibition, which accommodates the large bolus being propelled without increasing muscle tone. The strong compression of the colon wall generates afferent signals that are below nociceptive threshold in healthy subjects. However, these signals become nociceptive; if the amplitudes of GMCs increase, afferent nerves become hypersensitive, or descending inhibition is impaired. The GMCs also provide the force for rapid propulsion of feces and descending inhibition to relax the internal anal sphincter during defecation. The dysregulation of GMCs is a major factor in colonic motility disorders: irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and diverticular disease (DD). Frequent mass movements by GMCs cause diarrhea in diarrhea predominant IBS, IBD, and DD, while a decrease in the frequency of GMCs causes constipation. The GMCs generate the afferent signals for intermittent short-lived episodes of abdominal cramping in these disorders. Epigenetic dysregulation due to adverse events in early life is one of the major factors in generating the symptoms of IBS in adulthood.

Author: Peter R. Kvietys
Publisher: Morgan & Claypool Publishers
ISBN: 1615041176
Category : Medical
Languages : en
Pages : 127

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The microcirculation of the gastrointestinal tract is under the control of both myogenic and metabolic regulatory systems. The myogenic mechanism contributes to basal vascular tone and the regulation of transmural pressure, while the metabolic mechanism is responsible for maintaining an appropriate balance between O2 demand and O2 delivery. In the postprandial state, hydrolytic products of food digestion elicit a hyperemia, which serves to meet the increased O2 demand of nutrient assimilation. Metabolically linked factors (e.g., tissue pO2, adenosine) are primarily responsible for this functional hyperemia. The fenestrated capillaries of the gastrointestinal mucosa are relatively permeable to small hydrolytic products of food digestion (e.g., glucose), yet restrict the transcapillary movement of larger molecules (e.g., albumin). This allows for the absorption of hydrolytic products of food digestion without compromising the oncotic pressure gradient governing transcapillary fluid movement and edema formation. The gastrointestinal microcirculation is also an important component of the mucosal defense system whose function is to prevent (and rapidly repair) inadvertent epithelial injury by potentially noxious constituents of chyme. Two pathological conditions in which the gastrointestinal circulation plays an important role are ischemia/reperfusion and chronic portal hypertension. Ischemia/reperfusion results in mucosal edema and disruption of the epithelium due, in part, to an inflammatory response (e.g., increase in capillary permeability to macromolecules and neutrophil infiltration). Chronic portal hypertension results in an increase in gastrointestinal blood flow due to an imbalance in vasodilator and vasoconstrictor influences on the microcirculation. Table of Contents: Introduction / Anatomy / Regulation of Vascular Tone and Oxygenation / Extrinsic Vasoregulation: Neural and Humoral / Postprandial Hyperemia / Transcapillary Solute Exchange / Transcapillary Fluid Exchange / Interaction of Capillary and Interstitial Forces / Gastrointestinal Circulation and Mucosal Defense / Gastrointestinal Circulation and Mucosal Pathology I: Ischemia/Reperfusion / Gastrointestinal Circulation and Mucosal Pathology II: Chronic Portal Hypertension / Summary and Conclusions / References / Author Biography

Author:
Publisher: International Agency for Research on Cancer
ISBN: 9789283244998
Category : Medical
Languages : en
Pages : 0

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Book Description
Digestive System Tumours is the first volume in the fifth edition of the WHO series on the classification of human tumors. This series (also known as the WHO Blue Books) is regarded as the gold standard for the diagnosis of tumors and comprises a unique synthesis of histopathological diagnosis with digital and molecular pathology. These authoritative and concise reference books provide indispensable international standards for anyone involved in the care of patients with cancer or in cancer research, underpinning individual patient treatment as well as research into all aspects of cancer causation, prevention, therapy, and education.

Author: Shayne Cox Gad
Publisher: CRC Press
ISBN: 042978144X
Category : Medical
Languages : en
Pages : 477

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Nanoparticles as both potential unique risks and as a valuable approach to increased and higher specificity in delivery of therapeutics A primer on the largest, most diverse, and important microbiome in any mammal "Tricks of the trade" on modifying the oral administration of drugs

Author: Margaret E. Smith
Publisher:
ISBN: 9780443062452
Category : Medical
Languages : en
Pages : 237

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Book Description
In this book, text covers the core anatomy and physiology. Coverage of the necessary basic science is clinically driven - clinical cases used throughout chapters. In addition to the extensive use of cases throughout the book, the final chapter gives a coverage of the major diseases of the system, equipping students for the much earlier contact with patients which occurs under the new curriculum. Contents - Overview of the digestive system. Mouth and oesophagus. The stomach basic functions. The stomach control. Pancreas exocrine functions. Liver and biliary system. Small intestine. Digestion and absorption. Absorptive and post-absorptive states. The colon. Gastrointestinal pathology.

Author: F. T. Bosman
Publisher: International Agency for Research on Cancer
ISBN:
Category : Medical
Languages : en
Pages : 424

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"The WHO Classification of Tumours of the Digestive System presented in this book reflects the views of a Working Group that convened for an Editorial and Consensus Conference at the International Agency for Research on Cancer (IARC), Lyon, December 10-12, 2009"--P. [5].

Author: Seymour Simon
Publisher: Harper Collins
ISBN: 0060546514
Category : Juvenile Nonfiction
Languages : en
Pages : 42

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Book Description
Why is it important tochew your food? Can you guess how long it takes for food to travel through your body? Could you possibly have twenty feet of small intestines? Where does that bad-smelling gas come from? Your digestive system is out of sight and out of mind -- until things don't go right. Then you may wonder how these important organs work! You'll find the answers in Seymour Simon's smooth, well-organized, and fascinating introduction to the digestive system. He explains how it works twenty-four hours a day, turning pizza, sandwiches, milk, and other food into energy and nutrients and waste. Striking photographs on every spread show how major organs including the stomach and intestines move food through your body, and how, eventually, waste is eliminated. Guts takes the mystery out of something that happens to everyone, every day, while at the same time sharing a sense of wonder about the human body.

Author: John Barton Furness
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 312

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