2040 



HUMAN ANATOMY. 



the intervening portion of the Mullerian duct is represented by Rathke's 

 since Uuprosuui ,l,nd arises as an outgrowth from the urogemtal sinus 



-i h.is no urn.-ii.: relation with the seminal ducts. 

 Descent of the Testes.-The development of the sexual glands, m both 

 sexes is Mended with conspicuous migration from their original position on either 

 Tof the upper two lumbar vertebra,, opposite the lower pole of the kidney In 

 the c^se of the 1 testis, this miration is so extensive that by birth the organ usually has 

 p^sed through UK- abdominal wall and entered the scrotum, having completed 



^CeS peritoneal folds (mesenteries) and nbro-muscular bands (ligaments) merit 

 brief description, since they are more or less concerned in the migration of the = sexua 

 elands The \V,,lffian body is enclosed and attached to the posterior body-wall 

 by a fcld wrsont-phridium), of which the upper elongated end is continued to the 



FIG. 1719- 



Hf <-''< C BG 



> si-xcs from indifferent type. A. Indifferent: G, sexual gland ; WD, 

 Wolflwn duct! WF. WT. >;r..ii|.s .,i \\olman tuhult-s ; MD, Mullerian duct; RD. renal diverticuhtm C. cloaca; 

 A. albntow. K. M>iir. T. tticlc: VE. vasa efiereatk; GM globus major; VD, vas di-lcrens ; Pa. ]'.u;i- 

 i SV, t Scminal vosi, -I,- ; AT. appnidix trstis ; AE. appendix i-j>ididvniidis ; B, bladder ; PU, 



bkrenico-nustmepkrica} and the lower to the abdominal wall in 



inguino-meumepkrica). The early sexual uland is also 



iit.-rv un.-s^rliinni ..r ni<warinin}, that above and below is 



I.U that past tr..m th,. upprr and l,,\ver poles of the gland to the 



onephros. \Vitl,in tin- inferior plica, O f the two much the better 



lUBCUlar strand dhe lig a lt >nt of the tcsiis or 0ran>\ that lu-lmv 



is attached at first to both ,hr \V,,lffian and Mullerian ducts. Later owin- to the 

 t '" "|-r .f theN ducts, acrordinu to sex, the ligament of the 

 tl with tin- W-Htian duct and the ligament of the ovary with 

 luct J 



.\ i ,.nd lund , ,f rnuscukr tissue appean within the lower t of the { ino . 

 ttppef attachment also to the Wolffian and Mullerian 

 '-" "I"- &cy recme the insertion of the ligament of the testes or 

 km end d th,- hand l,l,nds with the subperitoneal tissue of the anterior 

 wall m the ***, ,,f the fnture al-l.nnnal 'ring. 



