Author:
Dr.Safiya .
Subject:
Life Science
Material Type:
Lecture Notes
Level:
Graduate / Professional
Tags:
License:
Creative Commons Attribution Non-Commercial Share Alike
Language:
English

Education Standards

Human Physiology

Human Physiology

Overview

Anatomy of stomach .

Regions of stomach

Microscopic Anatomy

Glands of stomach

Anatomy of stomach

Anatomy of stomach

  • Usually “J” shaped

  • Left side, anterior to the spleen

  • Temporary storage tank – chemical breakdown of protein begins

  • Food converted to creamy paste – chyme

Major regions

  • Cardiac region (or) Cardia – surrounds the cardiac orifice

  • Fundus – dome shaped

  • Body – mid portion of stomach

  • Pyloric region

  • Superior pyloric antrum

  • Narrow pyloric canal

  • And ends in Pylorous

  • Convex region – greater curvature

  • Concave region – lesser curvature

  • From curvature two mesenteries

  • Lesser omentum – runs liver to lesser curvature

  • Greater omentum – from greater curvature to small intestine

Microscopic anatomy

  • Stomach has four layers

  • Lining of stomach mucosa – simple columnar epithelium – goblet cell lining is dotted with millions of deep gastric pits which leads to gastric glands

  • Glands – have a variety of secretory cells

  • Mucous neck cell – produce mucous

  • Parietal (Oxyntic) Cells – secrete Hcl & Intrinsic factors.

  • Chief (or) Zymogenic cells – produce pepsinogen

  • Entero endocrine cells – a variety of hormone or hormone like