12 



TOrOGEAPHICAL ANATOMY OF 



defined where it meets the cervical muscle of the same name. Thin, 

 and with parallel fibres, it arises from the spinous processes of the 

 third to seventh thoracic vertebrse, and is inserted into the medial 

 surface of the scapular cartilage. 



The nerve to the rhomboid muscle is derived from the sixth cervical. 



Scapular cartilage. 



M. teres major. 



y/ M. triceps brachii 



(caput longum). 



M. cleltoideus 



M. infraspinatus, 



.M. supraspinatus. 



M. trapezius. 



.Spine. 



M. teres minor 



M. triceps brachii (caput longum) 



JI. teres minor. - 



Coracoid process. 

 • M. biceps brachii. 



Glenoid cavity. 



Fig. 5.— Lateral Aspect of the Scapula and Scapular Cartilage, with .Areas 

 of Muscular Attachment. 



and will be found piercing the cervical part of the ventral serratus 

 muscle. 



M. LATISSIMU8 DORSI,^ — This muscle merits its name. An extensive, 

 thin, and aponeurotic tendon connects it with the spinous processes 

 of all the vertebrae from the fourth thoracic to the last lumbar. Its 

 lumbar spinal connection is effected by the mergence of its aponeurosis 

 into the lumbodorsal fascia. The fleshy part of the muscle begins at 

 a curved line approximately on a level with the twelfth rib. At the 



1 Latissimus [L.], superlative of latiis, broad, wide. Dorsum [L.], the back. 



