Appendicular Artery, Posterior View

Description

Arising most commonly from the ileocolic artery, the appendicular artery runs within the mesoappendix to reach the vermiform appendix, where it courses distally toward the tip with only limited collateral input. From a posterior perspective, the cecum sits superior and medial to the appendix base, while the mesoappendix fans posteriorly from the terminal ileum and cecal region to cradle the appendicular vessels. Blue appendicular veins accompany the artery along the same mesenteric fold, and small ileocolic and appendiceal lymph nodes cluster along the vascular pedicle near the appendix root. End-arterial anatomy. That posterior view matters in appendectomy because the surgeon typically mobilizes and divides the mesoappendix to control the appendicular artery, and its variable origin or early branching can hide behind the cecum or terminal ileum. In acute appendicitis, thrombosis or kinking of this single dominant vessel contributes to ischemia and gangrene, which is why perforated appendicitis often declares itself first at the distal appendix. The illustration also supports teaching of referred pain patterns by tying visceral inflammation to the cecal and ileal mesentery where autonomic fibers travel. Use this artwork for gross anatomy labs covering the cecum, terminal ileum, and vermiform appendix, for surgical education on open or laparoscopic appendectomy (mesoappendix division and hemostasis), and for clinical texts discussing appendicitis, perforation risk, and appendiceal lymphatic drainage. It also fits radiology and pathology materials that correlate vascular compromise with gangrenous change at the appendix tip. Anatomical accuracy verified by SciePro's Medical Advisory Board.