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Arteries of the Thorax Artery Source Branches Supply to Notes Anterior Intercostal Internal Thoracic A

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Arteries of the Thorax Artery Source Branches Supply to Notes Anterior Intercostal Internal Thoracic A Arteries of the Thorax Artery Source Branches Supply to Notes anterior intercostal internal thoracic a. unnamed muscular intercostal there are two anterior (upper 6 intercostal branches muscles intercostal aa. per side spaces), anteriorly; skin per intercostal space, musculophrenic a. overlying the one coursing above and (7-10th intercostal intercostal one coursing below spaces) muscles each rib anterior radicular they arise as multiple they accompany the meninges; spinal anterior radicular aa. branches of several ventral rootlets to cord; spinal anastomose with the vessels (vertebral, reach the spinal cord nerve; ventral anterior spinal a. posterior intercostal, rootlets lumbar, and lateral sacral aa.) anterior spinal contributions pial arterial plexus meninges; spinal anterior spinal a. received from several cord; medulla anastomoses with the arteries (vertebral, (dorsal motor anterior radicular brs. posterior intercostal, nucleus of of the spinal rami of subcostal, lumbar, cranial nerve X, the vertebral, posterior lateral sacral aa.) nucleus intercostal, subcostal, ambiguus, spinal lumbar and lateral accessory sacral aa. nucleus and hypoglossal nucleus) aorta, ascending left ventricle of the left and right coronary heart, entire ascending aorta is the heart aa. body shortest part of the aorta; it continues as the aortic arch aorta, descending continuation of aortic posterior intercostal thoracic wall, descending thoracic thoracic arch aa. 3-11, subcostal aa., lungs, posterior aorta passes posterior left bronchial aa. (2), mediastinum, to the diaphragm esophageal aa. (~3), body below the (aortic hiatus) at the mediastinal brs., respiratory level of the T12 superior phrenic aa. diaphragm vertebral body; it is continuous with the abdominal aorta aortic arch the continuation of brachiocephalic the entire body aortic arch continues as the ascending aorta trunk, left common except the heart the descending thoracic carotid a., left aorta; the fibrous subclavian a. ligamentum arteriosum connects to the inferior surface of the aortic arch and it marks the location of the fetal ductus arteriosus aortic arch continues as the descending thoracic aorta artery to the right coronary a. near no named branches atrioventricular artery to the atrioventricular the point where it node and the atrioventricular node is 1 node becomes the surrounding located at the junction posterior myocardium of the coronary sulcus interventricular a. and the posterior interventricular sulcus artery to the right coronary a. no named branches sinuatrial node artery to the sinuatrial sinuatrial node and the node is important surrounding artery to locate during myocardium cardiac surgical procedures ascending aorta left ventricle of the left and right coronary heart, entire ascending aorta is the heart aa. body shortest part of the aorta; it continues as the aortic arch axillary subclavian a. (axillary 1st part: superior pectoral region, pectoralis minor m. a. is the continuation thoracic a.; 2nd part: shoulder region crosses anterior to the of the subclavian thoracoacromial a., and upper limb axillary artery and is lateral to the 1st rib) lateral thoracic a.; 3rd used to delineate the 3 part: anterior humeral parts mentioned at left circumflex a., posterior humeral circumflex a., subscapular a. brachiocephalic aortic arch right common carotid right side of the there is only one trunk a., right subclavian a. head and neck; brachiocephalic trunk right upper limb and right side of the chest wall bronchial, left descending thoracic right bronchial a. lower trachea, there are usually two aorta (occasionally) bronchial tree left bronchial aa. bronchial, right 3rd right posterior no named branches lower trachea, right bronchial a. may intercostal bronchial tree arise from the left bronchial a. carotid, common brachiocephalic external carotid a., most of the head common carotid a. trunk (right), aortic internal carotid a. and upper neck bifurcates at the level of arch (left) the superior border of the thyroid cartilage; the internal carotid a. and the external carotid a. are its terminal brs.; the carotid sinus and carotid body are located at the bifurcation circumflex left coronary a. marginal br., possibly posterior surface circumflex a. courses in posterior artery of the of the left the atrioventricular left ventricle ventricle (coronary) sulcus communicating, internal carotid a. perforating aa. an anastomotic a vessel of anastomosis posterior connection which connects the internal carotid a. to the posterior cerebral a.; part of the cerebral 2 arterial circle (of Willis) coronary, left ascending aorta anterior left ventricle, left left coronary a. arises interventricular a., atrium, superior to the left cusp circumflex a. anterosuperior of the aortic semilunar 2/3 of the valve; during its short interventricular course, it is located in septum the coronary sulcus; the anterior interventricular a. and the circumflex a. are its terminal brs. coronary, right ascending aorta sinuatrial nodal a., right ventricle, right coronary a. right marginal a., right atrium, usually provides the posterior inferior 1/3 of posterior interventricular a., the interventricular a.; it atrioventricular nodal interventricular courses within the a. septum coronary sulcus costocervical trunk subclavian a., 2nd deep cervical a., deep muscles of costocervical trunk is part highest intercostal a. the posterior located between the neck; posterior anterior scalene m. and ends of the first the middle scalene m.; 2 intercostal it arches posteriorly spaces over the cervical parietal pleura epigastric, superior internal thoracic a. no named branches upper rectus superior epigastric a. is abdominis m., the direct continuation upper of the internal thoracic abdominal wall a.; it s anastomoses with the inferior epigastric a. within the rectus abdominis m. esophageal descending thoracic no named branches lower 2/3rds of there are usually two aorta; left gastric a. the thoracic (sometimes 3) esophagus esophageal brs. off of the aorta; the left gastric a. gives esophageal brs. that ascend to supply the abdominal esophagus and lowest part of the thoracic esophagus; anastomoses occur between the esophageal brs. of the aorta and left gastric a. intercostal, anterior internal thoracic a. unnamed muscular intercostal there are two anterior (upper 6 intercostal branches muscles intercostal aa. per side spaces), anteriorly; skin per intercostal space, musculophrenic a. overlying the one coursing above and (7-10th intercostal intercostal one coursing below spaces) muscles each rib intercostal, highest costocervical trunk posterior intercostal intercostal highest intercostal a. is 3 aa. for intercostal muscles of also known as: spaces 1-2 intercostal supreme intercostal a. spaces 1 and 2, vertebral column, deep back muscles intercostal, highest intercostal posterior br., spinal intercostal posterior intercostal aa. posterior (upper 2 intercostal br., anterior br., muscles, spinal supply the lateral and spaces), descending collateral br., lateral cord and posterior portions of thoracic aorta (3rd- cutaneous br. vertebral the intercostal space; 11th intercostal column, deep anterior intercostal aa. spaces) back muscles, supply the anterior skin and portions of the superficial fascia intercostal spaces overlying the intercostal spaces lateral thoracic axillary, 2nd part unnamed muscular serratus anterior lateral thoracic a. is a branches m., parts of rare case in that it adjacent enters the serratus muscles, skin anterior from its and fascia of the superficial surface anterolateral thoracic wall left coronary ascending aorta anterior left ventricle, left left coronary a. arises interventricular a., atrium, superior to the left cusp circumflex a. anterosuperior of the aortic semilunar 2/3 of the valve; during its short interventricular course, it is located in septum the coronary sulcus; the anterior interventricular a. and the circumflex a. are its terminal brs. mammary, lateral lateral thoracic a. no named branches lateral side of the mammary gland is a mammary gland specialization of the skin and is supplied by superficial (cutaneous) arteries mammary, medial perforating brs. of no named branches medial side of mammary gland is a the internal thoracic the mammary specialization of the a. gland skin and is supplied by superficial (cutaneous) arteries musculophrenic internal thoracic a. anterior intercostal aa. anterior musculophrenic a. diaphragm, supplies muscles that anterior aspects develop in the septum of intercostal transversum spaces 7-10 or 11 nodal, right coronary a. near no named branches atrioventricular artery to the atrioventricular the point where it node and the atrioventricular node is 4 becomes the surrounding located at the junction posterior myocardium of the coronary sulcus interventricular a. and the posterior interventricular sulcus nodal, sinuatrial right coronary a. no named branches sinuatrial node sinuatrial nodal a. is an and the important artery to surrounding locate during cardiac myocardium surgical procedures pericardiacophrenic internal thoracic a. pericardial br., sternal pericardial sac, pericardiacophrenic a. br., mediastinal br. pleura, accompanies the diaphragm phrenic n. pericardial pericardiacophrenic no named branches pericardial sac pericardial a. courses a. on the external surface of the pericardial sac phrenic, inferior abdominal aorta superior suprarenal diaphragm, inferior phrenic a. is aa. suprarenal gland the first abdominal branch of the aorta; it may arise from the
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