Arteries and Veins/ GlossaryThis is a featured page

Pathway of Blood


Superior vena cava receives blood from the head and upper body and drains it into the right atrium
Inferior vena cava receives blood from the legs adn trunk and drains it into the right atrium
Coronary veins return deoxygenated blood from myocardium to coronary sinus
Coronary sinus large vein on the left posterior heart between atria and ventricle, receives venous blood from theveins within myocardium and drains into the right atrium
Right atrium superior chamber of the heart that receives blood from the vena cavae and coronary sinus
Right tricuspid valve located beetween right atrium and right ventricle, prevents backflow into right atrium during ventricular contraction
Right ventricle right inferior portion of the heart, sends blood to the pulmonary trunk
Pulmonary (semi-lunar) valve prevents backflow of blood from the pulmonary trunk to the right ventricle during ventricular relaxtion
Pulmonary trunk a large vessel on the anterior superior portion of the heart that receives blood form the right ventricle and directs to the lungs via the pulmonary arteries
Pulmonary arteries paired branches of the pulmonary trunk that direct deoxygenated blood to the lungs to be oxygenated
Pulmonary veins two vessels from each lung that return oxygenated blood to the heart's left atrium
Left atrium receives blood form the lungs via the pulmonary veins
Left bicuspid valve located between atrium and ventricl eon the left side, prevents backflow of blood into the left atrium during ventricular contraction
Left ventricle composed of an unusually thick myocardial wall for contraction against high pressure
Aortic valve three half-moon shaped cusps that prevent backflow of blood from the aorta to the relaxed left ventricle
Ascending aorta receives blood immediately from the ascending aorta, supplies blood to the myocardium
Aortic arch curved portion of the aorta that extends superior and posterior to the pulmonary trunk
Descending aorta portion of the aorta that descends from the aortic arch and continues inferiorly until it divides into the common iliac arteries
Arteries from the Aortic Arch
Brachiocephallic artery unpaired vessel origination from the aortic arch that supplies blood to theright arm and head through the right subclavian and right common carotid arteries
Left common carotid artery middle branch origination from the aortic arch, supplies the left side of the neck and heard through the external and internal carotid arteries
Left subclavian artery the last branch of the aortic arch, supplies the left upper limb through the axillary artery
Ateries of the Neck and Head
Left common carotid artery see above
Right common arotid artery one of two branches of the brachiocephalic artery, delivers blood to the right side of head and neck
External carotid artery paired artery located anterior to internal carotid artery, divides into arteries such as the facial artery that supply all structures of the head except the brain
Internal carotid artery paired artery located posterior to the external carotid and lateral to the phayrnx, enters the skull via the carotid canal of the temporal bone, suplpies the orbit and cerebrum
Arteries of the Upper Extremity
Subclavian artery (right and left) paired artery located inferior tot the clavicle, supplies upper limbs through the axillary artery: the right subclavian artery is one of the two branches of the brachiocephalic artery
Axillary artery derived from the subclavian artery, it passes through the armpit region and gives rise to the deep brachial and brachial arteries
Brachial artery a continuation of the axillary artery, this artery descends the medial side of the humerus then branches into the radial and ulnar arteries at the anterior elbow region
Radial vessels includes a branch of the brachial artery that descends the radial side and supplies the forearm
Ulnar vessels includes a branch of the brachial artery that descends the ulnar side and supplies te forearm
Branches of the Descending Aorta
Intercostal artery arterial branches of the internal thoracic artery, supply the intercostal muscles
Celiac trunk short vessel arising from the descending aorta inferior to the diaphragm, divides into three branches
Superior mesenteric artery arising from the descending aorta inferior to the celiac trunk, supplies the majority of the small intestine and part of the large intestine
Renal artery a branch of the descending aorta that supplies the kidneys
Gonadal artery paired branch of teh descending aorta at the L-2 level that supplies the gonads
Inferior mesenteric artery unpaired branch of the descending aorta located immediately superior to the bifurcation into the common iliac arteries, supplies part of the large intestine and the rectum
Common iliac artery paired branch of the descending aorta, supplies lower extremities and divides into the internal and external iliac arteries
Arteries of the Lower Extremity
Internal iliac artery deep branch of the common iliac artery that supplies the genital organs and gluteal muscles of the pelvic region
External iliac artery superficial branch of the common iliac artery that continues as the femoral artery, supplies the muscles of the thigh
Femoral artery an extension of the external iliac artery after the iliac traverses the inguinal ligament, supplies the muscles of the thigh
Deep Femoral artery a branch of the femoral artery that supples the posterior thigh muscles
Popliteal artery continuation of the femoral artery in the region of the posterior knee, supplies the knee joint, divides into posterior and anterior tibial arteries
Anterior Tibial Vessels derived from the popliteal artery, supplies the extensor muscles of the lower leg, ankle and dorsal side of the foot
Posterior Tibial Vessels supplies the flexor and fibularis muscles of the lower leg, sole and toes


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aclark19 		Latest page update: made by aclark19 , Jul 23 2008, 6:50 PM EDT (about this update About This Update aclark19 Edited by aclark19

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