DISSECTION OF THE UPPER EXTREMITY 



83 



M. trapezius 



FIG. 25. 



^Rami cutanei dorsalcs Nn. thoracalium 



'V . t Mm. rhomboidei, minor and major 



M. Icrator scapulae 

 N. dorsalis scapulae 



Mfprcwpfoafttt 



M. infraspinatus 



f . s^prascapularis 



iiy. transversum scapulae superius 



Lig. transversum, 

 'scapulae inferius 







Medial axillary space' " 



(triangular) 

 N. cutaneus brachii lateralis 



M. triceps brachii 



Caput medial 



Twig for the M. anconaeus and for the elbow-joint 



N. cutaneus brachii posterior < 



M. deltoideus 



\Lateral axillary 

 space (quadri- 

 lateral) 

 radialis 



^Rami muscu- 

 lares of the 

 N. radialis 

 Caput laterale of the 

 M. triceps brachii 



Ramus muscularis 

 for the M. brachialis 



If. brachialis 



M. brachioradialis 



N. cutaneus anti- 

 brachii dorsalis 



The nerves of the muscles about the shoulder-joint and of the M. triceps, together with the cutane- 

 ous branches of the Nn. axillaris and radialis, and the distribution of the N. dorsalis scapulae. The 

 acromion has been sawed off and drawn lateralward and the Mm. supraspinatus and infraspinatus cut 

 through. The lateral head of the M. triceps brachii has been cut through obliquely and its two parts 

 turned back. (After Toldt, Anat. Atlas, Wien, 1903, 3 Aufl., p. 824, Fig. 1256.) 





