EXCRETORY AND REPRODUCTIVE SYSTEMS. [71 
parietal layer of the peritoneum. The visceral layer of 
peritoneum is quite delicate 
and transparent and 
close to the testis. Immedi- 
ately surrounding the latter 
is a dense capsule, the tunica 
albuginea, sending septa 
into the interior. Within 
the tunica vaginalis is the 
tunica albuginea, closely in- 
vesting the testicle and ad- 
jacent to the epididymis, 
penetrating the substance of 
the gland, forming a sep- 
tum known as the medias- 
tinum testis or corpus High- 
morianum (Fig. 90). 
The testis is about 1% 
centimeters long by 1 centi- 
meter thick. On its dorsal 
surface lies the epididyius, 
an elongated body composed 
of an enlarged extremity, 
the globus major, and an at- 
tenuated portion, the globus 
minor. The main portion 
of a testicle.is composed of 
many minute coiled tubules, 
tubuli  seminifert, 
unite into a few tubules 
near the surface of the testis 
beneath the globus major, 
into which they 
These tubules are the vasa 
lies 
which 
extend. . 
Fic. 90. VENTRAL ASPECT OF THE 
Mate REPRODUCTIVE ORGANS. 
cr, One of the crura of the penis; 
cp, epididymis revealed by cut- 
ting and reflecting vg, a piece of 
the tunica vaginalis and albu- 
ginea; ef, external abdominal 
ring; if, internal abdominal 
ring; im, inguinal canal; g, glans 
penis; gd, Cowper’s glands; pe, 
penis; pr, prostate gland; rc, 
rectum; t, testis from which the 
tough sheath composed of the 
levator scroti muscle and cre- 
master fascia has been removed, 
leaving it enveloped by the 
tunica vaginalis; ts, testicle from 
which a portion of the tunica 
vaginalis and albuginea has been 
reflected; wth, urethra; ur, ure- 
ters; vd, spermatic cord; wdd, 
vas deferens within the abdomi- 
nal cavity; vg, tunica albuginea 
reflected; vg2, tunica albuginea; 
v, spermatic vein. 
