University:
Kentucky State University
Course:
BIO 301 | Human Anatomy
Academic year:

2023
Views:

349

Pages:

9
Author:

rehinhea0c

Ascending Colon Location and Description: • The ascending colon is about 5 inch. (13 cm) long • lies in the right lower quadrant. • It extends upward from the cecum to the inferior surface of the right lobe of the liver, where it turns to the left, forming the right colic flexure • Then becomes continuous with the transverse colon. • Taenia coli, sacculation & appendeces epiplolca are present The peritoneum - Covers the front and the sides of the ascending colon - Binding it to the posterior abdominal wall. Relations of ascending colon • • - Anteriorly: Coils of small intestine The greater omentum The anterior abdominal wall Posteriorly: The iliacus The iliac crest The quadratus lumborum The origin of the transversus abdominis muscle, - The lower pole of the right kidney. - The iliohypogastric .n - The ilioinguinal nerves cross behind it . Relations of ascending colon Blood Supply of Ascending colon Arteries • The ileocolic & right colic branches of the superior mesenteric artery supply this area. Veins • The veins correspond to the arteries and drain into the superior mesenteric vein. Lymphatic drainage of Ascending colon • The lymphatic vessels → lymph nodes lying along the course of the colic blood vessels → the superior mesenteric nodes. Lymphatic drainage Nerve Supply of ascending colon • Sympathetic and parasympathetic (vagus) nerves from the superior mesenteric plexus .