PERTINENT BLOOD VESSEL ROUTES See pages at end of Blood Vessels and Circulation Chapter in Saladin. When thinking about blood vessel routes, think about the path blood takes as it flows through vessels to some destination in the body. This is like giving directions to someone on how to drive somewhere. Name the vessels through which blood flows to get to a body part. The following is by no means a complete listing of blood vessels. UPPER EXTREMITIES ARTERIAL BLOOD SUPPLY TO THE LEFT UPPER EXTREMITY left ventricle ascending aorta aortic arch left subclavian artery axillary artery brachial artery ulnar artery or radial artery superficial and deep palmar arches palmar metacarpal and palmar digital arteries DEEP VENOUS RETURN FROM THE LEFT UPPER EXTREMITY palmar digital and palmar metacarpal veins superficial or deep palmar venous arches radial or ulnar veins brachial vein axillary vein subclavian vein left brachiocephalic vein superior vena cava right atrium SUPERFICIAL VENOUS RETURN FROM THE LEFT UPPER EXTREMITY palmar digital and palmar metacarpal veins dorsal venous network (2 paths) 1 - cephalic vein subclavian vein brachiocephalic vein superior vena cava 2 - basilic vein brachial vein axillary vein subclavian vein brachiocephalic vein superior vena cava right atrium ____________________________________________________________________________________ ARTERIAL BLOOD SUPPLY TO THE RIGHT UPPER EXTREMITY left ventricle ascending aorta aortic arch brachiocephalic artery right subclavian artery axillary artery brachial artery ulnar artery or radial artery superficial and deep palmar arches palmar metacarpal and palmar digital arteries DEEP VENOUS RETURN FROM THE RIGHT UPPER EXTREMITY palmar digital and palmar metacarpal veins superficial or deep palmar venous arches radial or ulnar veins brachial vein axillary vein subclavian vein right brachiocephalic vein superior vena cava right atrium SUPERFICIAL VENOUS RETURN FROM THE RIGHT UPPER EXTREMITY palmar digital and palmar metacarpal veins dorsal venous network (2 paths) 1 - cephalic vein subclavian vein brachiocephalic vein superior vena cava 2 - basilic vein brachial vein axillary vein subclavian vein brachiocephalic vein superior vena cava right atrium 1 LOWER EXTREMITIES ARTERIAL BLOOD SUPPLY TO THE LOWER EXTREMITIES left ventricle ascending aorta aortic arch thoracic aorta abdominal aorta common iliac artery external iliac artery femoral and deep femoral arteries popliteal artery anterior tibial or posterior tibial arteries dorsal pedal artery or lateral and medial plantar arteries plantar arch digital arteries DEEP VENOUS RETURN FROM THE LOWER EXTREMITIES digital and metacarpal veins dorsal venous arch and plantar veins dorsal pedal vein anterior tibial vein popliteal vein femoral vein external iliac vein common iliac vein –> inferior vena cava right atrium SUPERFICIAL VENOUS RETURN FROM THE LOWER EXTREMITIES digital and metacarpal veins dorsal venous arch and plantar veins small and great saphenous veins femoral vein external iliac vein common iliac vein inferior vena cava right atrium THE BRAIN ARTERIAL BLOOD SUPPLY TO THE LEFT BRAIN left ventricle ascending aorta aortic arch left common carotid artery left internal carotid artery circle of Willis left ventricle ascending aorta aortic arch left subclavian artery left vertebral artery basilar artery circle of Willis ARTERIAL BLOOD SUPPLY TO THE RIGHT BRAIN left ventricle ascending aorta aortic arch brachiocephalic artery right common carotid artery right internal carotid artery circle of Willis left ventricle ascending aorta aortic arch brachiocephalic artery right subclavian artery right vertebral artery basilar artery circle of Willis VENOUS RETURN FROM THE BRAIN dural sinuses internal jugular vein brachiocephalic vein superior vena cava right atrium THE HEAD AND NECK (not the brain) ARTERIAL BLOOD SUPPLY TO THE LEFT HEAD AND NECK left ventricle ascending aorta aortic arch left common carotid artery left external carotid artery (a number of branches that supply the head and neck) 2 ARTERIAL BLOOD SUPPLY TO THE RIGHT HEAD AND NECK left ventricle ascending aorta aortic arch brachiocephalic artery right common carotid artery right external carotid artery (a number of branches that supply the head and neck) VENOUS RETURN FROM THE HEAD AND NECK various branches draining the head and neck right external jugular vein subclavian vein brachiocephalic vein superior vena cava right atrium THE THORACIC WALL ARTERIAL BLOOD SUPPLY TO LEFT ANTERIOR THORACIC WALL left ventricle ascending aorta aortic arch left subclavian artery internal thoracic artery 11 anterior intercostal arteries ARTERIAL BLOOD SUPPLY TO THE RIGHT ANTERIOR THORACIC WALL left ventricle ascending aorta aortic arch brachiocephalic artery right subclavian artery internal thoracic artery 11 anterior intercostal arteries ARTERIAL BLOOD SUPPLY TO THE LEFT POSTERIOR THORACIC WALL AND THORACIC VISCERA left ventricle ascending aorta aortic arch thoracic aorta (several branches given off as the aorta passes respective structures) 1. right and left bronchial arteries 2. 11 pairs of posterior intercostal arteries 3. a series of esophageal arteries VENOUS RETURN OF THE THORACIC WALL AND THE THORACIC VISCERA intercostal veins and esophageal veins azygos veins superior vena cava right atrium blood from the bronchial arteries joins the flow from the pulmonary blood flow THE ABDOMINAL VISCERA ARTERIAL BLOOD SUPPLY TO PAIRED ORGANS OF THE ABDOMINAL CAVITY left ventricle ascending aorta aortic arch thoracic aorta abdominal aorta (several branches given off as the aorta passes respective structures) 1. right and left inferior phrenic arteries 2. right and left superior, middle, and inferior suprarenal arteries 3. right and left renal arteries 4. right and left gonadal arteries (gonads originated near the kidneys) 5. a series of lumbar arteries to the body wall 3 VENOUS RETURN FROM THE PAIRED ORGANS OF THE ABDOMINAL CAVITY paired venous branches corresponding to the arterial supply join the inferior vena cava right atrium ARTERIAL BLOOD SUPPLY TO THE UNPAIRED ORGANS OF THE ABDMINAL CAVITY left ventricle ascending aorta thoracic aorta abdominal aorta 3 branches from superior to inferior: 1. celiac trunk gives rise to three branches: a. common hepatic artery to the liver b. splenic artery to the spleen c. left gastric artery 2. superior mesenteric artery supplies all of the small intestine and the large intestine to the splenic flexure 3. inferior mesenteric artery supplies the large intestine from the splenic flexure to the rectum VENOUS RETURN FROM THE UNPAIRED ORGANS OF THE ABDOMINAL CAVITY blood from the large intestine from the splenic flexure to the rectum empties into the inferior mesenteric vein splenic vein blood from the rest of the large intestine, the small intestine, and the pancreas superior mesenteric vein the splenic vein and the superior mesenteric vein unite to form the hepatic portal vein the gastric veins join the hepatic portal vein the hepatic portal vein dumps its blood into the liver sinusoids for processing hepatic vein inferior vena cava right atrium THE PELVIC STRUCTURES ARTERIAL BLOOD SUPPLY TO THE STRUCTURES OF THE PELVIC CAVITY left ventricle ascending aorta aortic arch thoracic aorta abdominal aorta common iliac artery internal iliac artery various organs and structures VENOUS RETURN FROM THE STRUCTURES OF THE PELVIC CAVITY various organs and structures internal iliac vein common iliac vein inferior vena cava right atrium 4