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Gastric Secretion Johnson Chap. 34-35 Jack L. Leonard 2004
Johnson Chap. 34-35 The Stomach Esophagus Fundus Corpus Pyloric antrum Pyloric canal Pylorus Duodenum Gastric pit isthmus neck base Parietal cells Surface mucous cells Mucous neck cells Argentaffincell Chief cells
Johnson Chap. 34-35 The Pavlov Pouch Experiment
Johnson Chap. 34-35 0.6 0.4 0.2 0 1 230 hours Acid Output (mmol/15min) jejunum Heidenhain pouch Double-walled muscosal septum Vagally innervated pyloric pouch A. B. Incision Closure Pouch sham feeding
Johnson Chap. 34-35 Acid Output (mEq T.A./7.5 min) Time (min) Histamine Stimulation of Acid Secretion
Johnson Chap. 34-35 Basal folds Basement lamina lamina Golgi TubulovescularMembrane Intracellularcanaliculus Mitochondria Basal folds Unstimulated Intracellularcanaliculus Mitochondria Intracellularcanaliculus TubulovescularMembrane Basement lamina lamina Stimulated Changes in Parietal Cell Morphology with Stimulation
Johnson Chap. 34-35 Ion Transport in the Parietal Cell
Johnson Chap. 34-35 Presumed Effects of Stimuli on the Parietal Cell Vesicles ATP ADP+ PO 4 K+K+K+K+ H+H+H+H+ K+K+K+K+ K+K+K+K+ Cl - P H/K J Cl JKJKJKJK
Johnson Chap. 34-35 Stimulation Presumed Effects of Histamine on the Parietal Cell
DIGESTIVE CELLS OF THE STOMACH. PARIETAL CELLS OFTEN BINUCLEATED PUMP H⁺ IONS INTO LUMEN LIE IN THE STOMACH WALL hill.com/sites/ /student_view0/c.
The stomach functions both as a reservoir and as a digestive organ. It empties its contents in small portions (suitable for continued digestion) into.
STOMACH – GASTRIC SECRETION
Cellular Physiology of Secretion and Absorption Johnson Chap Jack L. Leonard 2004.
HISTOLOGY OF STOMACH By Dr. Sobia Ibrahim Assistant Professor Anatomy, KEMU.
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Chapter 19.5-Stomach. Four Regions 1)Cardia 2)Fundus 3)Body 4)Pylorus -Pyloric sphincter CARDIA BODY FUNDUS PYLORUS Pyloric sphincter Rugae of mucosa.
Gastric Motility & Secretion Dr. Mohammed Alzoghaibi.
Stomach : -Fundus or Body -Gastric pits ( Foveolae )>> histological definition. -Mucous surface cell. - Parietal Cell = Oxyntic Cell. - Peptic cell =
© 2015 Pearson Education, Inc.
GI System: Esophagus & Stomach Laboratory Orientation.
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GIT physiology. 2 The Role of GIT Provides the body with water, electrolytes and nutrients Requires: 1.Movement of food 2.Break down the food to absorbable.
ANNOUNCEMENTS SECOND EXAM: Wednesday, April 22nd Material Covered: Bone, Muscle, Nerve & Circulatory, Lymphatic, & Urinary Systems REVIEW SESSION TODAY,
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Slot 4.1: Submandibular (left) and sublingual (right) glands m = mucous, s = serous, x = mixed, d = duct Serous demilunesD = duct; F = adipose cells Mucous.
Today lecture Gastric and intestinal secretion **Types **Functions **Mechanisms **Regulation special consideration will be on gastric secretion.
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Peptic Ulcer Disease Lerma, Daniel Joseph M.. Peptic Ulcer Disease Ulcer - disruption of the mucosal integrity of the stomach and/or duodenum leading.
Pharynx. PHARYNX Passage way for food and liquid. In both digestive and respiratory systems.
HORMONES OF THE GASTROINTESTINAL TRACT. Dr. M. Alzaharna (2014) Gastric and Intestinal Glands The gastric and intestinal glands are embedded in the mucosa.
Pharynx and Esophagus Deglutition –Moves a bolus from the mouth to the stomach Mouth Fauces Oropharynx –Second division of the pharynx Esophagus –Pierces.
The Digestive System Human Anatomy and Physiology Per 2 & 3 Miss Tavitian.
© 2014 Pearson Education, Inc.
Lesson # 16The Digestive System 2 Chapter 24 Objectives: 1- To describe the macroscopic and microscopic anatomy of the stomach. 2- To describe the function.
1 III GASTRIC MOTILITY. 2 Major Function of Gastric Motility To serve as a reservoir To break food into small particles and mix food with gastric.
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