tt ae 
ai era 
gow ¥ _. TESTICLES. 2 
Two oval bodies, contained in the cayity of the scrotum. There 
is a hard vascular body, formed of conyolutions of the conveying 
duct, lying on the testicle. The integuments of the testicle are, the 
serotum ; the white coat, which is smooth, and adheres very firm, 
to the body of the testicle ; and the sheath coat, which descends with 
and prepare Semen, or seed. © ~ 
= 
SECRETION AND EXCRETION OF THE SEMEN. 
The semen is secreted by minute branches of the spermatic arte- 
Ties, that deposit it into the corr ing seminal vessels, which 
compose the greater part of the the testicle. The s 
the proper stimulus to these vessels, which are therefore stimulated. 
to'contract, and by a very slow motion convey it into the little body 
and conveying duct, by which it is carried through the groin ring 
‘Into the pelvis, to be deposited in the seminal vessels, where it ex- 
cites a desire to emit it. The cells of the two cavernous bodies of 
the: penis are distended with blood by the venereal stimulus ;_— 
hence, the penis swells, and is inclined for coition, during which ac- 
tion, at the height of pleasure, the seminal vessels contract, and — 
the semen is thrown with an immense force, through the ejaculatory — 
ducts, opening into the urethra, where it is mixed with the secre 
from the prostate gland, which is expelled at the same 
passes with it along the urethra, to be propelled by th 
of the ejaculatory muscles into the cavity of the womb 
2 at ke 
SEMINAL VESSELS. 
im es, which 
from the conveying d ‘hey are situated 
the bladder, above its neck. Substance 1, Terr 
