Aorta
Subdivisions:
Ascending
Arch
Descending Thoracic (superior to diaphragm)
Descending Abdominal (inferior to diaphragm)
Coronary arteries supply myocardium
Brachiocephalic trunk (bifurcates to form right common carotid and subclavian arteries)
Left common carotid artery
Left subclavian artery.
These vessels deliver blood to the head, neck, upper extremities, and upper back.
Posterior intercostal arteries
Celiac trunk, which typically has three main branches
Superior mesenteric artery
Right and left renal arteries
Right and left gonadal arteries
Inferior mesenteric artery.
These vessels deliver blood to the tissues of the trunk (specifically, to organs of the digestive, urinary, and reproductive systems).Bifurcates to form common iliac arteries (at approximately L4-L5)
Common iliac arteries split to form external and internal iliac arteries, which supply the pelvis and lower extremities.
