452 Development and Vascularization of the Testis 
these encircling arteries have almost completed their growth around the 
testis. A certain limited portion lying close to the epididymis is never 
encroached upon by these branching arteries. From the spermatic 
artery before it reaches the testis several branches arise, from five to 
seven in number, which supply the cord and globus major and minor. 
Frequent anastomoses are seen on the albiginea, and small branches 
which encircle the anterior portion of the gland form anastomoses with 
Ee. 6. HIG. 1. 
Fic. 6. The macroscopic appearance of an arterially injected adult pig 
testis, showing peculiar tortuous arrangement of the branches of the cap- 
sular artery in the tunica albuginea. xX %. 
Fic. 7. A macroscopic drawing of the left injected testis of a human fetus 
of seven months. X 6%. The dotted lines show the position of the cord and 
epididymis. 
arteries supplying the globus major: thus allowing blood to penetrate 
the testis should the posterior portion of the capsular artery become oc- 
cluded. The Mullerian ducts are atrophied and appear as ridges upon 
the Wolffian ducts which have increased in diameter of lumen and in 
thickness of wall. 
The relations of the superficial blood supply in the testes of the adult 
pig and mouse and of the human fcetus of seven months together with 
