4. Functions
Spermatogenesis, which
means simply the formation
of sperm
Regulation of male
reproductive functions by
the various hormones
Performance of the male
sexual act
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5. THE ORGANS AND THEIR
FUNCTIONS:-
scrotum:- temperature regulation
and protection of the testes
testes:- sperms production & the
secretion of male sex hormones
ducts:- store & transport sperms
accessory glands:- secretion of
the
fluid part of the semen
penis:- male organ of copulation
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6. Physiologic Anatomy of male
reproductive organs
The testis is composed of
seminiferous tubules, in which the
sperm are formed. The sperm then
empty into the epididymis. The
epididymis leads into the vas
deferens.
Two seminal vesicles, one located on
each side of the prostate, empty into
the prostatic end of the ampulla,
pass into an ejaculatory duct
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7. The urethra is the last
connecting link from the testis
to the exterior. The urethra is
supplied with mucus derived
from urethral glands and
also from bilateral
bulbourethral glands
(Cowper's glands) located
near the origin of the urethra
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41. Puberty in the male
This occurs between the ages of 10 and 14.
Luteinising hormone from the anterior lobe of the
pituitary gland stimulates the interstitial cells of
the testes to increase the production of
testosterone.
This hormone influences the development of the
body to sexual maturity.
The changes which occur at puberty are:
◦ growth of muscle and bone and a marked increase in
height and weight
◦ enlargement of the larynx and deepening of the
voice —it 'breaks‘
◦ growth of hair on the face, axillae, chest, abdomen
and pubis
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42. ◦ enlargement of the penis, scrotum and
prostate gland
◦ maturation of the seminiferous tubules and
production of spermatozoa
◦ the skin thickens and becomes more oily
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