MUSCULAR ARCHITECTURE OF THE HUMAN HEART 249 



-CO 



Fig. 12 Dissection of the septum viewed from the right side. CO, conus; BS 

 and BS', superficial and deep bulbo-spiral bands which end at X; LRV, longitud- 

 inal band of the right ventricle; TR, posterior triangular field; *S<S, sino-spiral 

 band passing under fasciculus C of the superficial bulbo-spiral band; D, layer D 

 of fig. 5 which is blended with the interpapillary layer, IV. 



THE AMEBICAN JOURNAL OF ANATOMY, VOL. 11, NO. 3 



