Anatomy · MU Sofia

Internal Organs+Glands · 61-62. Stomach - topography, blood supply, lymphatic drainage, nerve supply.

Covers the stomach's position, shape and parts: its two ends, two curves and two surfaces, with the lesser and greater curves' attachments. It then describes lymphatic drainage in a table linking each region to its nodes, followed by the nerve supply, the arterial and venous blood supply from the celiac trunk, and a brief look at the wall layers and gastric gland cells.

Inside: 10 sections · 6 labelled pictures · 1 table · 10 flashcards · 4 min

Topic 58 of 264 in the MU Sofia syllabus for Anatomy (Dental Medicine, Year 2). The free AceMed note covers it in 10 sections, about 573 words (4 min of reading), with 10 flashcards.

In this note

  1. Introduction
  2. STOMACH
  3. Ends of the stomach:
  4. Curves of the stomach :
  5. Surfaces of the stomach:
  6. Lymphatic drainage:
  7. Parts of the stomach
  8. Nerve Supply:
  9. Blood supply:
  10. Histology

Introduction

61+62

STOMACH

(Intraperitoneal)

  • Definition: the most dilatable part of the digestive system, connecting esophagus to duodenum.
  • Site: occupies part of left hypochondrium, epigastrium, and umbilical regions.
  • Shape: the stomach is J-shaped (most common, steer horn (less common)
  • The stomach has :
  • 2 ends
  • 2 borders (curves)
  • 2 surfaces
  • 2 parts

Ends of the stomach:

1. Cardiac

  • At junction between esophagus and stomach.
  • 1 inch to the left from median plane (behind 7th costal cartilage).
  • Related anteriorly to left lobe of liver.
  • It has no anatomical sphincter (physiological sphincter)
  • Esophagus enter the stomach at an acute angle.

2. Pyloric

  • At junction between stomach and small intestine.
  • 1 inch to the right of the median plane (at L1 level) (?).
  • Related anteriorly to quadrate lobe of liver.
  • It has anatomical sphincter (marked by circular groove and vein of Mayo, connecting right gastric and right gastroepiploic veins).

Curves of the stomach :

1. Lesser Curve :

  • Concave, small, right border.
  • It shows the angular notch
  • Provides attachment to the Lesser omentum (right and left gastric arteries run between its 2 layers).

2. Greater Curve :

  • Convex, large, left border.
  • It shows the cardiac notch.
  • It shows the pyloric antrum opposite the angular notch.
  • Provides attachments for gastro-phrenic, gastro-splenic ligaments + anterior 2 layers of greater omentum (with right and left gastroepiploic vessels running between them).

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