The major arteries of your body branch off from the
aorta and lead to the head, arms, and trunk. The remain-
ing arteries branch off from there.
The ascending aorta branches into the right and left
coronary arteries, which supply the heart.
The arch of the aorta branches into three divisions:
= head) leads to the right
common carotid artery, which supplies the right side
of the head and neck, and to the right subclavian
artery, which supplies the right upper limb.
The left common carotid artery supplies the left side
of the head and neck.
The left subclavian artery supplies the left upper limb.
The thoracic aorta has four branches:
The bronchial arteries supply the bronchi of the lungs.
The esophageal arteries supply the esophagus.
The posterior intercostal arteries supply the inter-
costal and chest muscles.
The superior phrenic arteries supply the superior
and posterior surfaces of the diaphragm.
The abdominal aorta branches into eight divisions:
The inferior phrenic arteries supply the inferior
surface of the diaphragm.
The celiac trunk leads to the common hepatic artery,
supplying the liver, stomach, duodenum, and pancreas.
It also leads to the left gastric artery, which supplies
the stomach and esophagus, and to the splenic artery,
which supplies the spleen, pancreas, and stomach.
The superior mesenteric artery supplies the small intes-
tine, cecum, parts of the colon, and pancreas.
The suprarenal arteries supply the adrenal glands.
The renal arteries supply the kidneys.
The gonadal arteries supply the testes (males) and
The inferior mesenteric artery supplies the rectum
and parts of the colon.
The common iliac arteries carry blood to the lower
Within the organs the arteries divide into arterioles and
then into capillaries that service the systemic tissues (all
tissues except the alveoli of the lungs).
view of branches of
brachiocephalic trunk in neck and head
Right common carotid
of base of
showing cerebral arterial circle
circle (circle of Willis):
322 CHAPTER 11
The Cardiovascular System: Heart, Blood Vessels, and Circulation