20 UPPER EXTREMITY. 



inside chest to 6th intercostal space, there dividing into mus- 

 culo-phrenic and superior epigastric. Co'mes ner'viphren'ici, 

 to diaphragm; anastomoses with other phrenic branches. Me- 

 diastina'les, to areolar of anterior mediastinum, also remains of 

 thymus. Pericardia' les, to upper pericardium, triangularis 

 sterni, anas, musculo-phrenic. Anterio'res intercosta'les, to 

 5 or 6 tipper intercostal spaces, to intercostal and pectoral 

 muscles and mammary gland; anas, aortic intercostal. Per- 

 foran'tes, to 5 or 6 upper intercostal spaces, to pectoral mus- 

 cles and mammary gland. Mus' culo-phren' ica , perforates 

 diaphragm at 8th or pth rib, supplying intercostal spaces, dia- 

 phragm and abdominal muscles. Epigas'trica supe'rior 

 down behind rectus to supply that muscle and others near it; 

 anas, with inferior epigastric. Supe'rior int;rc:sta'les, upper and 

 back portion lid part to ist and 2d intercostal spaces, supply- 

 ing spinal muscles and cord ; anas, aortic intercostals. Pro* 

 fun'da cervi'cis back to 7th cervical vertebra and between 

 complexus and semi-spinalis colli runs to axis, supplying con- 

 tiguous muscles, anas, anterior princeps cervicis. 



AXILLA'EIA: (7 brs.) lower border ist rib to tendons latissi- 

 mus dorsi and teres major ; ist part, ist rib to pect. minor j 

 lid, from superior border pectoralis minor to inferior border 

 same ; md, from inferior border pectoralis minor to tendon 

 latissimus dorsi. Sups'rior T-Orac'ica, 1st part forwards and in- 

 wards along superior border pectoralis minor, supplying pec- 

 toral muscles; anas, internal mammary and intercostal. AcrO- 

 ffiia1:S T_0rac'-Ca, ist part to upper border pectoralis minor ; 

 Acromia'Us, towards acromian process to deltoid ; anas, su- 

 prascapular and posterior circumflex. Thorat' ictz , 2 or 3 in 

 number, supplying serratus magnus and pectoral muscles } 

 anas, intercostals of internal mammary. Desc:nding\>r2cn.z\\ts 

 supply pectoralis major and deltoid, as accompanying cephalic 

 vein. Thorac'.ca loa'ga, n. part, down- and inwards along inferior 

 border pectoralis minor to pectoral muscles, axillary and mam- 

 mary glands, serratus magnus and subscapulnris ; anas, inter- 

 nal mammary and intercostal. ThwaC'lCl ala'r S, n. part, to 

 glands and areolar tissue of the axilla. Subscapu a'rifl, in. part, 

 opposite inferior border do muscle, down and b.tck Inferior 

 margin do muscle to inferior angle scapula ; anas, posterior 

 scapular. Dorsa'lis scap'ulce dividing into 3 branches, "sub- 

 scapular," "infra-spinous," and "median." Altogether they 

 supply the scapular, latissimus dorsi and serratus magnus 

 muscles. Make a general anastomosis. Posto'rio: CirC"mfles'a, 

 opposite inferior border subscapularis, winds round neck 



