Gastrointestinal tract: stomach and small intestine

This presentation contains 13 slides. The first four slides are refreshers on the position of the stomach and small intestine within the abdomen. The fundus of the stomach is on the left-hand side of the abdomen, caudal to the liver and medial to the spleen. The gastric body is on the left and at the midline of the abdomen, caudal to the liver, medial to the spleen, and cranial to the left pancreatic lobe and transverse portion of the colon. The pyloric antrum and pylorus are on the right-hand side of the abdomen, caudal to the liver and gallbladder, cranial to the body and right pancreatic lobe, and ventral to the portal vein. The descending part of the duodenum is medial and along the right abdominal wall, caudal to the liver, ventral to the right kidney, and ventral or ventrolateral to the right pancreatic lobe. The jejunum is positioned in the middle of the peritoneal cavity and typically slightly right sided. The ileum is usually traced from the ileocaecocolic junction. The position of the stomach and small intestine is then illustrated on ultrasonographic still images and videos.