74 



THE MUSCLES. 



origin the fibres pass forwards and outwards to be inserted in two 

 portions^ the anterior set into the arch and the posterior set into the 

 transverse process of the last vertebra. The former may be re- 

 garded as m. intercrnralis, the latter as vi. iutertransversarius. 



Fig. 67. 





37. (3) M. coccygeo- 

 iliacus (Fig. 67 c.i.). 



This muscle arises 

 from nearly the whole 

 length of the lateral sur- 

 face of the urostyle^ the 

 anterior portion being 

 concealed by the preced- 

 ing muscle. The fibres 

 pass outwards and for- 

 wards to be inserted into 

 the anterior two-thirds of 

 the inner surface of the 



38. -/)/. ilio-I Kilt bavin 

 (Klein), (Fig. 6-] //.). 



Duges, n. 5 1 , transverso-ili- 

 aqne. — Cuvier, Zenker, 

 etc., quadr. lumhorum. 



Evidently represents 

 the quaâratus lunthorurii 

 of human anatomy; it 

 takes its origin from 

 the anterior extremity 

 of the ilium, and runs 

 forwards to be inserted 

 into the transverse pro- 

 cesses of the vertebrae 

 from the seventh to the 

 fourth. 



