Tumor of the colon.. Upper and lower mesenteric artery and vein. Extranous branch of inferior valvular artery. The lower hemorrhoid vein that connects the papillary sentence with the systemic systemic vein

Colon Tumors:
Arteries:
Right colon: Upper mesenteric artery.
Left colon: Lower mesenteric artery.
- Bottom of the rectum: the extensor branch of the lower hemorrhoidal artery.
Veins:
- Upper and lower mesenteric vein (same as previous talk about arterial perfusion applies to veins).
- Down the rectum of the lower hemorrhoid vein that connects the sentence with the systemic venous sentence, so when hyperthermia in the vein of the door expands this vein, and we call these expansions of the hemorrhoids exceeded the resemblance (but here is caused by hyperthermia and the door and form the area of the convergence of the portal rotary system).