ACTION OF THE MALE. 



953 



appendix ; which seems like a testis in miniature, closely resembling a single 

 lobule in its structure. Its special function is unknown. The fluid secreted by 



Fig. 239. 



Human Testis, injected with mercury as completely as possible : 1, 1, lobules formed of the seminiferous 

 tubes ; 2, rete testis ; 3, vasa efferentia ; 4, flexures of the efferent vessels passing into the head, 5, 5, of the 

 epididymis ; 6, body of the epididymis ; 7, appendix ; 8, cauda ; 9, vas deferens. 



the Testis is thick, tenacious, and of a grayish or yellowish color. It is mingled, 

 during or before emission, with fluid secreted by the Prostate, Cowper's gland, 

 &c. ; and it cannot, therefore, be obtained pure but by drawing it from the tes- 



Fig. 240. 



Plan of the structure of the Testis and Epididymis : a, a, seminiferous tubes ; a* , a* , their anastomoses; 

 a, lobules formed of the seminiferous tubes; b, rete testis; c, vasa efferentia; d, flexures of the efferent vessels 

 passing into the head, e, e, of the epididymis;/, body of the epididymis; ^appendix; h, cauda; t' 3 vas deferens. 



