THE ABDOMINAL AORTA 



795 



Fig. 718. 



Vertebral artery 



Common carotid artery 



Superior intercostal artery 



Subclavian artery 



Innominate artery 

 I. aortic intercostal artery 



Right bronchus 



II and III aortic intercostal 



arteries 



Right and left coronary 

 arteries 

 Leaflets of aortic semilunar. — . 

 valve 



IV.-VU. aortic intercostal 

 arteries 



Vena azygos 



Thoracic duct 



Subcostal artery 



Part of right crus of 



diaphragm 



I. lumbar artery 

 Quadratus lumborum 



Superior mesenteric artery 



Suprarenal artery 



Renal artery 



Inferior mesenteric 

 artery 



Psoas magnus 



muscle — 7^ 



Iliac branch of 

 ilio-lumbar artery 



Trachea 



Left common carotid artery 

 Scalenus anticus muscle 

 \'ertebral artery 

 Sectional surface of I. rib 



Superior intercostal artery 



1. and II. aortic intercostal 

 , , . , arteries 



Left bronchus 



Aorta 



Upper left bronchial artery 



'{ Oesophagus 



Lower left bronchial artery 



III , IV. and V. aortic 



intercostals 

 L — A pericardial branch 



'cEsophageal branches 



VI. -X. aortic intercostal 



arteries 



An oesophageal branch 

 — Inferior phrenic arteries 

 Subcostal artery 



Coeliac axis 



1 lumbar artery 



Lumbar fascia— middle layer 



Suprarenal artery 

 Renal artery 



II. lumbar artery 



Spermatic arteries 

 III. lumbar artery 

 Origin of quadratus lumborunj 



IV. lumbar artery 

 Middle sacral artery 



Left common iliac artery 



Internal iliac artery 



Ilio-lumbar artery 

 Posterior trunk of int. iliac 

 Anterior trunk of int. ilia*. 



External iliac artery 



Aorta and its branches: ten intercostal arteries are present, first supplying second space; on right 

 side internal intercostal muscles are in position, on left they have been removed. 



