L4.5.2.1: Arterial Branches

• ● Arterial branches of the ASCENDING AORTA

  ○ Right and Left Coronary Arteries: both serve the heart
• ● Arterial branches of the AORTIC ARCH

  ○ Brachiocephalic Trunk

  ○ Left Common Carotid Artery

  ○ Left Subclavian Artery
• ● Arterial branches of the AORTIC ARCH

  ○ Brachiocephalic Trunk: splits into the right common carotid artery and right subclavian artery
• ● Arterial branches of the AORTIC ARCH

  ○ Left Common Carotid Artery: splits into the left internal and external carotid arteries
• ● Arterial branches of the AORTIC ARCH

  ○ Left Subclavian Artery: branches into the vertebral artery

  ■ In the axilla, the subclavian artery becomes the: Axillary artery → brachial artery → radial and ulnar arteries
• ● Arterial branches of the THORACIC AORTA

  ○ Intercoastal Arteries: supply the muscles of the thorax wall

  ■ Other branches:

  ■ Bronchial (lungs)

  ■ Esophageal (esophagus)

  ■ Phrenic (diaphragm)
• ● Arterial branches of the ABDOMINAL AORTA

  ○ Celiac Trunk

  ○ Superior Mesenteric Artery

  ○ Right and Left Renal Arteries

  ○ Right and Left Gonadal Arteries

  ○ Lumbar Arteries

  ○ Inferior Mesenteric Artery

  ○ Right and Left Common Iliac Arteries
• ● Arterial branches of the ABDOMINAL AORTA

  ○ Celiac Trunk: first branch of the abdominal aorta

  ■ 3 branches:

  ■ Left gastric (stomach)

  ■ Splenic (spleen)

  ■ Common hepatic artery (liver)
• ● Arterial branches of the ABDOMINAL AORTA

  ○ Superior Mesenteric Artery: supplies most of the small intestine and first half of the large intestine
• ● Arterial branches of the ABDOMINAL AORTA

  ○ Right and Left Renal Arteries: serve the kidney

  ○ Right and Left Gonadal Arteries: ovarian arteries in females serve the ovaries and testicular arteries in males serve the testes
• ● Arterial branches of the ABDOMINAL AORTA

  ○ Lumbar Arteries: serve muscles of the abdomen and trunk
• ● Arterial branches of the ABDOMINAL AORTA

  ○ Inferior Mesenteric Artery: serves the second half of the large intestine
• ● Arterial branches of the ABDOMINAL AORTA

  ○ Right and Left Common Iliac Arteries: final branches of the aorta

  ■ Internal iliac arteries serve the pelvic organs

  ■ External iliac arteries enter the thigh → femoral artery → popliteal artery → anterior and posterior tibial arteries