MTSCLES OF THE ANTERIOR EXTREMITY. 



77 



(b) Muscles which arise from the vertebrae. 



46. 3L tnuuveno^tayularu major (Ecker), (Fig. 68 /*). 



Duges, transverso-interscapulaire, n. 63. Cuvier, /. c., p. 380, probably 

 regarded as a portion of the serrati.t*. Zenker, PI. I, Fig. 5, 3 ; 

 depressor acromii, PI. II, Fig. 3, 15. Klein, depressor scapulae. 



This muscle arises by tendon from the cartilage of the transverse 

 process of the fourth vertebra and by a slip from the cartilage 

 of the transverse process of the third vertebra. Diminishing in 

 size, the muscle passes outwards, forwards, and upwards to be 

 inserted into the posterior border of the scapula, opposite the in- 

 sertion of the M. stemodeidomaftoide**. It draws the shoulder 

 inwards, backwards, and downwards. 



47. 31. iran.neno-scapnJ.arh -minor (Ecker), (Fig. 68 ts). 

 Duges. transverso-adscapulaire, n.jSi. Cuvier, regarded as part of the 



teri-atus. Zenker, PI. I, Fig. 5, 7, detractor scapulae. 



This is much shorter than the muscle just described; it arises 

 under cover of the ///. 

 lev at or scapulae, from 

 the transverse process 

 of the third vertebra 

 in front of the tranx- 

 verso-scapuZaris major; 

 and runs outwards and 

 forwards to be inserted 

 into the ventral surface 

 of the cartilage of the 

 scapula. The action of 

 the muscle is to draw 

 the shoulder inwards, 

 backwards, and out- 

 wards. Duges re- 

 gards this muscle as 

 a portion of the *<// v?- 

 f/f-s anticiis iiiagnuz, the 

 remainder of which 

 he considers is to be 

 found in the portio 

 scapidari* of the m. 

 obKquiu extern it s (xi- 

 pho-adscapulaire, Du- 

 ges, n. 62). 



ts 



it 



Muscles of the shoulder, from below ; the sternum has been cut 

 through and the sides drawn apart. 



d Deltoideus . 

 t> Interscapularis. 



I nt enran-s versarii. 

 la Ler. anguli scapulae. 

 p* Protrahens scapulae. 

 tc Sternocleidomastoideus. 

 Subscapularis. 

 ts Transverso-scap. major. 

 tt" Transverso-scap. minor. 

 tf Transverso-scap. tertii^. 



