<>4 THE POCKET ANATOMY 



Superior epigastric : internal terminal branch passes behind 

 yth costal cartilage and pierces diaphragm, lies posterior to 

 rectus within the sheath, terminating in that muscle; anas. 

 deep epigastric of external iliac. 



BRANCH FROM THE 2ND PART. 



SUPERIOR INTERCOSTAL : from upper and back part behind 

 scalenus anticus, bends backwards over pleural dome in front 

 of neck of ist rib to ist and 2nd intercostal spaces, supplies 

 small branches to cord and deep spinal muscles. On the 

 neck of the ist rib, the ist intercostal nerve is external, and 

 ist thoracic ganglion of sympathetic, internal to artery. 



Branch : 



Deep cervical : corresponds to posterior branch of an aortic 

 intercostal ; passes between transverse process of yth cervical 

 vertebra and ist rib, ascending beneath complexus to axis ; 

 anas, vertebral, and deep branch of arteria princeps cervicis 

 of occipital. 



THE COMMON CAROTID ARTERY. 



THE COMMON CAROTID ARTERY : On the right side, arises 

 from the innominate, at its bifurcation behind the right 

 sterno-clavicular articulation. On the left side, from the 

 highest or transverse part of aortic arch, and is consequently 

 longer than the right artery, and more deeply placed in the 

 thorax at its origin. It ascends obliquely to the neck. 



Relations of the Left Common Carotid in the Thorax. 



Extent. In the neck the common carotid of either side ex- 

 tends from sterno-clavicular articulation to opposite upper 

 border of thyroid cartilage, there dividing into external and 

 internal carotids. 



Course. A line drawn from sterno-clavicular articulation, 

 to point midway between mastoid process ajad angle of irA- 

 tprior maxilla. 



