The interactive dog atlas · Organs · Abdomen

Cecum caecum

The cecum is a blind pouch at the start of the large intestine, on the right side of the abdomen, below the ascending colon.

Educational material, not a diagnostic tool. Written by the Mantrailing România team from veterinary sources we read. Updated 14.11.2026.

Dog in left lateral view — exterior, muscles, skeleton and organs Vector study after the Ellenberger, Baum and Dittrich plates: a standing dog, head to the left, deep chest and digitigrade limbs. The four layers use the same contour: exterior with body regions, superficial muscles, skeleton and organs.
Cecum on the atlas drawing, "Organs" layer. Left lateral view, after the Ellenberger, Baum and Dittrich plates.

Where it is

On the right side, caudoventral to the ascending colon (dashed outline).

Layer
Organs
System
Digestive system
Region
Abdomen

What it is and what it does

The dog's cecum is a blind pouch at the start of the large intestine, lying caudoventral to the ascending colon, on the right side of the root of the mesentery. The ileum opens into the large intestine through the ileal orifice, and the cecum communicates with the colon through the cecocolic orifice. In the left-side view it is drawn with a dashed outline.

Worth remembering

The small intestine opens into the large intestine right next to it. Being on the right, it is drawn with a dashed outline.

Names

Guides it appears in