Anatomy of stomach

ANATOMY MBBS

1. ANATOMY OF STOMACH

2. DEVELOPMENT

3. Stomach is a muscular bag-most distensible part of the digestive tract. Occupies epigastric,umbilical & left hypochondrium regions. J-shaped to pyriform . 25cm long,1.5-2litres.

4. EXTERNAL FEATURES Two orifices : Cardiac and Pyloric Two curvatures : Greater and Lesser Two surfaces : Anterosuperior and Posteroinferior Two parts : Cardia – Fundus and Body :Pyloric – Antrum and Canal

5. RELATIONS OF THE STOMACH Peritoneal Relations

6. Visceral relations

7. INTERIOR OF THE STOMACH

8. HISTOLOGY Mucous cells Parietal cells Chief cells Endocrine cells Submucosa -strongest collagen rich layer Pyloric sphincter-circumferential layer of smooth muscle

9. BLOOD SUPPLY

10. VENOUS DRAINAGE Right & Left gastric veins-Portal vein Right gastroepiploic vein-superior mesenteric vein Left gastroepiploic & Short gastric veins-Splenic vein

11. LYMPHATIC DRAINAGE

12. NERVE SUPPLY Intrinsic Sympathetic Parasympathetic

13. REFERENCES SRB’s Manual of Surgery,4 th edition. B. D. Chaurasia’s Human Anatomy,Vol.2,5 th edition.

14. THANK YOU !