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Testicle
The
testicle
(from
Latin
testiculus
, diminutive of
testis
, meaning "witness" of
virility
,
plural
testes
) is the male
gonad
in
animals
. Like the
ovaries
to which they are
homologous
, testes are components of both the
reproductive system
and the
endocrine system
. The primary functions of the testes are to produce
sperm
(
spermatogenesis
) and to produce
androgens
, primarily
testosterone
.
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