326 A Composite Study of the Subelavian Artery in ]\laii 



AI. infraspinatus: 



p (a. transversa scapulii\ One lar;;e branch. 



^R. descendeus transversa colli. Several medium branches. 



Frequent A. circumflexa scapulae. One large branch. 



M. latissimus dorsi: 



r^ ^ J. ' fli. descendens transversa colli. 



Constant < , , , . 



I A. subscapularis. 



If. subscaiiularis: 



Constant R. descendens transversa colli. ^ 



Frequent A. transversa scapulae. 



M. sternocleido-jnastoidcus: 



\ A. transversa scapulae. Small and medium branches. 



Constant ^ ji^_ cervicalls superficialis. Small and medium branches. 



A. cervicalis ascendens. Small and medium branches. 



j Truncus thyreo-cervicalis. Small and medium branches. 

 1 A. thyroidea inferior. Small and medium branches. 



Rare R. descendens transversa colli. 



M. omohyoidcus: 



^ ^ ^ Ta. cervicalis superficialis, or branches from. 



Constant < . ^ ... 



[_A. transversa colli. 



Frequent A transversa scapulae. 



A. thyroidea inferior. 



Occasional ^ . . ,. , 



A. cervicalis ascendens. 



Rare A. subclavia. Three times. 



11. stcrno-hijoidcus, and stcrno-thyroideus : 



Constant or frequent A. thyroidea inferior. 



Occasional A. transversa scapulae. 



Rare A. subclavia. 



II. scalenus anterior, nicdius, and posterior: 



ex. cervicalis ascendens. Many branches. 



Constant J 'i'l'i^ncus costo-cervicalis, or its branches. 



A. intercostalis suprema (R. dorsalis). 

 ^A. cervicalis profunda. 



„ ,'a. cervicalis superficialis, or branches from. 



Frequent. ' 



I; 



A. transversa colli. 



Occasional R. ascendens and descendens transversa colli. 



Rare A. subclavia. 



M. longiis colli: 

 fA. cervicalis ascendens. 



Constant. . '. j 'i'l'^'icus costo-cervicalis, or its branches. 



I A. intercostalis suprema. 

 La. cervicalis profunda. 



Frequent. . A. thyroidea inferior. 



Rare .A. sul^clavia. 



