Organs or Components of the Abdomen

Description

Anterior, semi-transparent abdominal wall exposes the peritoneal cavity of an adult female with light skin tone, with the liver occupying the right upper quadrant and the stomach lying superior and left of midline beneath the costal margin. Coils of jejunum and ileum fill the central abdomen, their mesentery fanning posteroinferiorly toward the root, while the large intestine frames the small bowel with the transverse colon crossing superiorly and the descending and sigmoid colon coursing to the left lower quadrant. Red arterial and blue venous channels track along the mesenteric border, with the superior mesenteric artery and vein running anterior to the third part of the duodenum and distributing arcades and vasa recta to the midgut; inferior mesenteric branches descend toward the hindgut, and fine green strands suggest lymphatic collectors or autonomic nerves within the mesenteries. Orientation is immediate. Vascular mapping in this projection matters when teaching or planning around mesenteric perfusion territories, because the midgut supplied by the superior mesenteric artery differs sharply from the hindgut supplied by the inferior mesenteric artery in ischemic patterns and postoperative risk. Acute mesenteric ischemia often declares itself with severe pain and few early peritoneal signs, so correlating bowel loops with the superior mesenteric vessels, marginal artery, and portal venous drainage helps explain why emboli, low-flow states, or venous thrombosis produce distinct segments of injured intestine. Portal hypertension and variceal pathways also become easier to explain when the mesenteric venous return is shown converging toward the portal system. Use this artwork for gross anatomy and GI block teaching, surgical education on midline laparotomy orientation and mesenteric handling, and medical publishing figures on mesenteric ischemia, bowel resection planning, and abdominal vascular anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.