Abdominal Aorta Scheme (Course, Branches, Mnemonics) | Anatomy

Alright so this video will be about the abdominal aorta. In the last video we Looked at the side branches of the thoracic aorta So let’s now move under the diaphragm to look into the abdominal aorta. SO the abdominal aorta extends all the way from The lower border of the 12 thoracic vertebra, T12 To the 4th lumbar vertebrae,

L4, and then it will divide into The right and left common iliac arteries. Occasionally you may find it continuing Between them as The median sacral artery supplying the coccygeal and piriform muscle So the abdominal aorta has two groups of side branches Visceral and parietal branches. The visceral supplying the visceral organs, and the Parietal

supplying everything else. So let’s break this down by starting with the visceral branches. They’re divided into Paired and Unpaired branches. The unpaired visceral branches of the abdominal aorta Are the coeliac Trunk Superior Mesenteric And the Inferior Mesenteric artery. So now let’s first do the coeliac trunk, and then just kinda work from there. So the Celiac trunk is really mostly associated with the organs

you’ll find on the upper part of the abdominal cavity, and it has 3 major branches for this. So The first one is the left gastric artery. It goes upwards towards the abdominal part of the esophagus, and then along the lesser Curvature of the stomach to supply the stomach It does supply the abdominal part of the

esophagus, and keep in mind it also connects with the esophageal branches of the thoracic aorta. Then there’s the splenic artery, going horizontally straight to the spleen to supply it, going behind the stomach as you see here. This one do have side branches You know the pancreas? The splenic artery gives off branches for the pancreas called the pancreatic branches, supplying the tail and the body of the pancreas.