GIT

Stomach

Objectives 1.Physiological anatomy 2.blood supply 3.innervation 4.Gastic secretion

Lec 4. 19 March 2013

Physiological Anatomy

Gastric Secretion

Oxyntic Glands---3 TYPES OF CELLS .

Basic mechanism of HCL Secretion

Basic steps for HCl formation

Q.explain why a slight increase in blood PH may occur following a heavy meal?. The elevated PH of blood ,especially in veins that carry blood away from the stomach ,is called “postprandial alkaline tide”

Stimulation of gastric acid secretion

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Phases of Gastric Secretion

Cephalic phase .

. Gastric Phase . Intestinal Phase

Q. What happens when Surgeon cuts the vagal nerve(parasympathetic cranial nerve) to the stomach