SPINAL GANGLION 

 NEURAL PROCESS 

 TRAPEZIUS 



BRACHIORADIALIS 

 EXTENSOR CARPI F 

 SUPIN 



EXTENSOR POLLIC 

 BREVIS 

 EXTENSOR POLLICIS 

 LONGUS 



EXTENSOR 



INDICIS 



EXTENSOR CARPI 

 ULNARIS 



SCAPULA 

 TER 

 SERRATUS 



CLOSED 



URETHRAL 



GROOVE 



bulbocavernosus 

 ;hiocavernosus 



URETHRAL ORIFICE 



GLUTEUS MAXIMUS 



GLUTEUS MAXIMUS 

 MALE INDIFFERENT STAGE 



Fig. 329 — (Continued) Later development of musculature in human embryo. (B after 

 Lewis, 1902, Am. J. Anat., 1.) (B) Developing forelimb musculature of human embryo 

 (lateral aspect of limb). (C) Differentiation of cloacal musculature in human embryo. 



713 



