PERITONEUM - 2

on 26.6.07 with 0 comments



Mesentery: Two layers of peritoneum opposing each other. Vessels and nerves often lie in the mesentery, where they can easily reach the organ where the peritoneal layers separate and reflect off the organs.

THE Mesentery: The one that connects the small intestine to the posterior abdominal wall.
  • The root of the mesentery is where the Mesentery connects to the posterior wall.
  • Transverse Mesocolon: Specific mesentery connecting the transverse colon to the posterior peritoneum.
  • Sigmoid Mesocolon: Specific mesentery connecting the sigmoid colon to the posterior peritoneum.
The Anterior Surface of the Diaphragm:

• Vena Caval Foramen: Hole for the Inferior Vena Cava, where it passes to the liver.
  • Around T8
  • It is located in the central tendon (superior most part) of the diaphragm.
Eosphageal Hiatus: Opening that admits the esophagus, guarded by two muscles left crus and right crus.
  • Left Gastric Artery and Left Gastric Vein also pass through the eosphageal hiatus.
  • Passes through at T10.
Aortic Hiatus: Is actually posterior to the diaphragm -- not really a hole in the diaphragm.
  • Thoracic Duct goes posterior through this opening as well as aorta.
  • About Level 12, at lower most part of diaphragm.
• Lumbocostal Arches: Transversalis Fascia on the posterior wall of the diaphragm. Sympathetic Ganglia come through along these arches.

Tags: , ,

Category: Anatomy Notes

POST COMMENT

0 comments:

Post a Comment

Newer Post
Older Post
Subscribe to: Post Comments (Atom)