The male reproductive system consists of both internal and external organs that work together to produce, maintain, and transport sperm and reproductive hormones. The primary sex organs are the testes which produce sperm and testosterone. Sperm travel from the testes through the vas deferens, epididymis, and urethra. Accessory glands including the seminal vesicles and prostate gland secrete fluids that form semen. The penis, scrotum, and other structures help to deliver semen during sexual intercourse.
The reproductive system is a collection of internal and external organs —in both males and females —that work together for the purpose of procreating.
Due to its vital role in the survival of the species, many scientists feel that the reproductive system is among the most important systems in the entire body.
The human body’s major systems, the reproductive system is the one that differs most between sexes, and the only system that does not function until puberty.
The reproductive system is a collection of internal and external organs —in both males and females —that work together for the purpose of procreating.
Due to its vital role in the survival of the species, many scientists feel that the reproductive system is among the most important systems in the entire body.
The human body’s major systems, the reproductive system is the one that differs most between sexes, and the only system that does not function until puberty.
Involved in the development, maturation, transport and deposition of the male gametes (spermatozoa).
It consists of the paired testes,
the convoluted duct of the epididymis (ductus epididymidis),
the deferent duct (ductus deferens), the urethra (pars pelvina urethra) and the accessory glands
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2. WHAT IS THE MALE REPRODUCTIVE
SYSTEM
CONSIST OF NUMBER OF SEX ORGANS WHICH GIVE
EXISTANCE TO A WELL DEFINED SYSTEM CALLED
MALE REPRODUCTIVE SYSTEM
Produces Stores and release The male
gametes(sperms)
Production of male hormones
3. WHICH SEX ORGANS GIVE RISE TO MALE
REPRODUCTIVE SYSTEM
PRIMARY
Testicles
Secondery
Vas efferentia (ductuli efferentes)
epididymis
Vas deferens (ductus deferens)
urethra
Penis
4. Things to be noted
Wolffian ducts give rise to
paired vasa deferentia, vasa
efferentia, and the
epididymis
5. Accessory sex Glands
seminal vesicle (absent in dog)
Prostate gland
Bulbo urethral gland (Cowper’s gland)
(absent in dog)
6. Protective supportive & other
structures
1) Scrotum
2) External cremaster and tunica dartos
3) Spermatic cord
4) Sigmoid flexor (absent in horse and dog)
7. Testes Or testicles
The testes are 2 small oval shaped organs
that are found inside the scrotum
Produce hormone testosterone
Produce sperm cells
Containing seminiferous tubules (lined
with germinal epithelium that produce
spermatozoa & also Contain Sertoli cells
that provide nutrition to developing
sperms)
8. Vas efferentia
A network of small tubes in the testicle
that helps move sperm cells (male
reproductive cells) from the testicle to
the epididymis
Lead from the rete testis
9. Epididymis
The epididymis is a duct-like organ that
connects the testis to the vas deferens
1. Head or caput
°It stores the sperms until they are ready
for maturation(sperm are not motile at this
stage
2. Corpus or body
° It is the long coiled tube, where sperms
mature
3.Tail or cauda
°It stores the mature sperm and is
connected to the vas deferens.
10. Vas deferens
A coiled tube made of fibers &
muscles which propels sperm
into the urethra during
ejaculation.
11. Urethra
The urethra is a fibromuscular tube which serves as
the terminal region of both the male urinary and
reproductive systems.
1. Prostatic urethra
The part of the urethra that carries seminal fluid through the
prostate gland to produce the semen that will be ejaculated
2.Membranous urethra
The membranous urethra is the narrowest and tightest part of
the urethra, so it helps you hold urine in. It’s surrounded by a
circular muscle called a sphincter.
3.Spongy (or penile) urethra
the longest part of the male urethra, and is contained
in the corpus spongiosum of the penis
12. Penis
The male genital organ of higher vertebrates,
carrying the duct for the transfer of sperm during
copulation. In humans and most of the mammals, it
consists largely of erectile tissue and serves also for
the elimination of urine
As a part of Reproductive system it plays its role as
copulatory organ
13. Seminal vesicles
The vesicles may also be called
seminal glands or vesicular glands
They produce a thick fluid that
contains the sugar fructose,
proteins, citric acid, inorganic
phosphorus, potassium, and
prostaglandins.
14. Prostate gland
The prostate is located just below the
bladder and in front of the rectum
It produces fluid that makes up a part of
semen
Secretes a slightly alkaline fluid that is
milky or white in appearance and makes
up a portion of semen that is enriched in
zinc and contributes to the alkalinity of
semen that helps neutralize the acidity
of the vaginal tract to prolong the
lifespan of sperm.
15. Cowper’s gland
Cowper’s glands are pea sized glands
present inferior to the prostate gland
in the male reproductive system
Cowper’s gland secretions is to
neutralize traces of acidic urine in the
urethra
16. Scrotum
The bag of skin that holds and helps to
protect the testicles
The scrotum protects testes, as well as
providing a sort of climate control system.
Cyptorchid: condition in which one or both
testicles fail to move from the abdomen,
where they develop before birth, into the
scrotum.
17. External cremaster and Tunica
Dartus
External cremaster is a muscle
functions to regulate the
temperature of the testis and to
protect it from extrinsic trauma
The dartos is a thin sheet of
smooth muscle closely associated
with the skin of the scrotum
18. Spermatic cord
A cord-like structure in the male
reproductive system that contains
nerves, blood and lymph vessels,
and the vas deferens (a coiled tube
that carries sperm out of the
testicle)
19. Sigmoid flexor
Strong retractor muscles hold
the penis in the “S” shaped
configuration.
sigmoid flexure or S-shaped
bend along its length
The sigmoid flexure is
straightened out when the
penis is extended for mating
