72 



THK MUSCLES. 



rise fronj the posterior surface of the exoccipital as far as the 

 middle line ; the muscles of the two sides run backwards^ diverging- 

 each from the other, so as to form an angle, and are then attached 

 on each side to the anterior superior angle of the suprascapula at 

 its under surface and median border. 



Cuvier considers this muscle as the analogue of the ni. levator 

 anguli scapulae. Dugès and Meckel consider it to be the anterior part 

 of the m. ciicullaris, the former thinking the posterior part of the 

 muscle to be the m. rhomboideiis. I cannot agree with these opinions, 

 and I regard the muscle as simply representing the m. cucidlaris of 

 man (Eeker). 



32. M. latissinms dorsi (Figs. ^6, 66 Id). 



Dugès, n. 66, lombo-hume'ral. — Zenker, depressor brachii. 



This thin, triangular muscle arises from the ventral surface of the 

 fascia dorsal is, and is posteriorly covered in part by the anterior 

 border of the m. ohliqmis abdominis externus. The muscle becomes 

 narrower towards the sides, and passes into a flat tendon, which 

 blends with that of the m. infrasjAnafns, and is attached to the 

 Ficf. 66. outer surface of the crista 



deltoidea of the humerus by 

 a triangular expansion. 



33. M. retrahens scapu- 

 lae (Ecker), (Fig. 66 r). 



Dugès, n. 59, lombo-adscapulaire. 

 — Klein, m. rlioviboideus, I. c, 

 ]>. 26. — Zenker, omoplaleus 

 rectus'? p. 37, I.e. — Kuh.1, I.e., 

 124, retrahens rhomboideus. 



This flat, oblong muscle 

 arises from the transverse 

 process of the fourth verte- 

 bi'a, and is connected with 

 tlie third tendinous inscrip- 

 tion (counting' from before) 

 of the 711. longiss. dorsi. Pos- 

 teriorly its origin forms a 

 convex border, whence it 

 runs forwards and to the 

 side ; it is inserted into the 

 ventral surface of the supra- 

 scapula, near its inner border. 



Muscles of the back and shoulder-blade. 

 c M. cuciillaris. 

 dm M. depressor maxillae arising from the fascia dor- 



salis, cut through and reflected on the right side. 

 fd Fascia dorsaUs. 

 fcV Same cut through at the spines. 

 i M. infraspinatus. 

 La M. levator anguli scapulae. 

 Id M. T.atissimus dorsi. 

 r M. retrahens scai)ulae. 

 sc M. sternocleidomasttiideus. 



