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THE REPRODUCTIVE SYSTEM
THE PARTS AND IT’S FUNCTION
WHAT IS REPRODUCTION?
REPRODUCTION (OR PROCREATION OR BREEDING) IS THE
BIOLOGICAL PROCESS BY WHICH NEW INDIVIDUAL
ORGANISMS – "OFFSPRING" – ARE PRODUCED FROM THEIR
"PARENTS". REPRODUCTION IS A FUNDAMENTAL FEATURE
OF ALL KNOWN LIFE; EACH INDIVIDUAL ORGANISM EXISTS
AS THE RESULT OF REPRODUCTION. THERE ARE TWO FORMS
OF REPRODUCTION: ASEXUAL AND SEXUAL.
THE MALE REPRODUCTIVE ORGAN
DEFINITION
• The entire male reproductive system is dependent on
hormones, which are chemicals that regulate the activity of
many different types of cells or organs. The primary hormones
involved in the male reproductive system are follicle-
stimulating hormone, luteinizing hormone, and testosterone.
PENIS
• This is the male organ used in sexual intercourse. It has three
parts: the root, which attaches to the wall of the abdomen; the
body, or shaft; and the glans, which is the cone-shaped part at
the end of the penis. The glans, also called the head of the
penis, is covered with a loose layer of skin called foreskin. This
skin is sometimes removed in a procedure called circumcision.
The opening of the urethra, the tube that transports semen and
urine, is at the tip of the penis. The glans of the penis also
contains a number of sensitive nerve endings.
SCROTUM
• This is the loose pouch-like sac of skin that hangs behind and
below the penis. It contains the testicles (also called testes), as
well as many nerves and blood vessels. The scrotum acts as a
"climate control system" for the testes. For normal sperm
development, the testes must be at a temperature slightly
cooler than body temperature. Special muscles in the wall of
the scrotum allow it to contract and relax, moving the testicles
closer to the body for warmth or farther away from the body to
cool the temperature.
TESTICLES
• These are oval organs about the size of large olives that lie in
the scrotum, secured at either end by a structure called the
spermatic cord. Most men have two testes. The testes are
responsible for making testosterone, the primary male sex
hormone, and for generating sperm. Within the testes are
coiled masses of tubes called seminiferous tubules. These
tubes are responsible for producing sperm cells.
EPIDIDYMIS
• The epididymis is a long, coiled tube that rests on the backside
of each testicle. It transports and stores sperm cells that are
produced in the testes. It also is the job of the epididymis to
bring the sperm to maturity, since the sperm that emerge from
the testes are immature and incapable of fertilization. During
sexual arousal, contractions force the sperm into the vas
deferens.
VAS DEFERENS
• The vas deferens is a long, muscular tube that travels from the
epididymis into the pelvic cavity, to just behind the bladder.
The vas deferens transports mature sperm to the urethra, the
tube that carries urine or sperm to outside of the body, in
preparation for ejaculation.
EJECULATORY DUCTS
• These are formed by the fusion of the vas deferens and the
seminal vesicles. The ejaculatory ducts empty into the urethra.
URETHRA
• The urethra is the tube that carries urine from the bladder to
outside of the body. In males, it has the additional function of
ejaculating semen when the man reaches orgasm. When the
penis is erect during sex, the flow of urine is blocked from the
urethra, allowing only semen to be ejaculated at orgasm.
SEMINAL VESICLES
• The seminal vesicles are sac-like pouches that attach to the vas
deferens near the base of the bladder. The seminal vesicles
produce a sugar-rich fluid (fructose) that provides sperm with a
source of energy to help them move. The fluid of the seminal
vesicles makes up most of the volume of a man's ejaculatory
fluid, or ejaculate.
PROSTATE GLAND
• The prostate gland is a walnut-sized structure that is located
below the urinary bladder in front of the rectum. The prostate
gland contributes additional fluid to the ejaculate. Prostate
fluids also help to nourish the sperm. The urethra, which
carries the ejaculate to be expelled during orgasm, runs
through the center of the prostate gland.
BULBOURETHRAL GLANDS
• Also called Cowper's glands, these are pea-sized structures
located on the sides of the urethra just below the prostate
gland. These glands produce a clear, slippery fluid that empties
directly into the urethra. This fluid serves to lubricate the
urethra and to neutralize any acidity that may be present due to
residual drops of urine in the urethra.
THE FEMALE REPRODUCTIVE SYSTEM
DESCRIPTION
• The female reproductive system is made up of the internal and
external sex organs that function in reproduction of new offspring. In
the human the female reproductive system is immature at birth and
develops to maturity at puberty to be able to produce gametes, and
to carry a fetus to full term. The internal sex organs are the uterus,
Fallopian tubes, and ovaries. The uterus or womb accommodates the
embryo which develops into the fetus. The uterus also produces
vaginal and uterine secretions which help the transit of sperm to the
Fallopian tubes. The ovaries produce the ova (egg cells). The external
sex organs are also known as the genitals and these are the organs
of the vulva including the labia, clitoris, and vaginal opening. The
vagina is connected to the uterus at the cervix.
LABIA MAJORA
• The labia majora enclose and protect the other external
reproductive organs. Literally translated as "large lips," the
labia majora are relatively large and fleshy, and are comparable
to the scrotum in males. The labia majora contain sweat and
oil-secreting glands. After puberty, the labia majora are
covered with hair.
LABIA MINORA
• Literally translated as "small lips," the labia minora can be very
small or up to 2 inches wide. They lie just inside the labia
majora, and surround the openings to the vagina (the canal that
joins the lower part of the uterus to the outside of the body)
and urethra (the tube that carries urine from the bladder to the
outside of the body).
BARTHOLIN’S GLAND
• These glands are located beside the vaginal opening and
produce a fluid (mucus) secretion.
CLITORIS
• The two labia minora meet at the clitoris, a small, sensitive
protrusion that is comparable to the penis in males. The clitoris
is covered by a fold of skin, called the prepuce, which is similar
to the foreskin at the end of the penis. Like the penis, the
clitoris is very sensitive to stimulation and can become erect.
VAGINA
• The vagina is a canal that joins the cervix (the lower part of
uterus) to the outside of the body. It also is known as the birth
canal.
UTERUS
• The uterus is a hollow, pear-shaped organ that is the home to
a developing fetus. The uterus is divided into two parts: the
cervix, which is the lower part that opens into the vagina, and
the main body of the uterus, called the corpus. The corpus can
easily expand to hold a developing baby. A channel through the
cervix allows sperm to enter and menstrual blood to exit.
OVARIES
• The ovaries are small, oval-shaped glands that are located on
either side of the uterus. The ovaries produce eggs and
hormones.
FALLOPIAN TUBE
• These are narrow tubes that are attached to the upper part of
the uterus and serve as tunnels for the ova (egg cells) to travel
from the ovaries to the uterus. Conception, the fertilization of
an egg by a sperm, normally occurs in the fallopian tubes. The
fertilized egg then moves to the uterus, where it implants into
the lining of the uterine wall.

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The Male and Female Reproductive System and it's functions

  • 1. THE REPRODUCTIVE SYSTEM THE PARTS AND IT’S FUNCTION
  • 2. WHAT IS REPRODUCTION? REPRODUCTION (OR PROCREATION OR BREEDING) IS THE BIOLOGICAL PROCESS BY WHICH NEW INDIVIDUAL ORGANISMS – "OFFSPRING" – ARE PRODUCED FROM THEIR "PARENTS". REPRODUCTION IS A FUNDAMENTAL FEATURE OF ALL KNOWN LIFE; EACH INDIVIDUAL ORGANISM EXISTS AS THE RESULT OF REPRODUCTION. THERE ARE TWO FORMS OF REPRODUCTION: ASEXUAL AND SEXUAL.
  • 4. DEFINITION • The entire male reproductive system is dependent on hormones, which are chemicals that regulate the activity of many different types of cells or organs. The primary hormones involved in the male reproductive system are follicle- stimulating hormone, luteinizing hormone, and testosterone.
  • 5. PENIS • This is the male organ used in sexual intercourse. It has three parts: the root, which attaches to the wall of the abdomen; the body, or shaft; and the glans, which is the cone-shaped part at the end of the penis. The glans, also called the head of the penis, is covered with a loose layer of skin called foreskin. This skin is sometimes removed in a procedure called circumcision. The opening of the urethra, the tube that transports semen and urine, is at the tip of the penis. The glans of the penis also contains a number of sensitive nerve endings.
  • 6. SCROTUM • This is the loose pouch-like sac of skin that hangs behind and below the penis. It contains the testicles (also called testes), as well as many nerves and blood vessels. The scrotum acts as a "climate control system" for the testes. For normal sperm development, the testes must be at a temperature slightly cooler than body temperature. Special muscles in the wall of the scrotum allow it to contract and relax, moving the testicles closer to the body for warmth or farther away from the body to cool the temperature.
  • 7. TESTICLES • These are oval organs about the size of large olives that lie in the scrotum, secured at either end by a structure called the spermatic cord. Most men have two testes. The testes are responsible for making testosterone, the primary male sex hormone, and for generating sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubes are responsible for producing sperm cells.
  • 8. EPIDIDYMIS • The epididymis is a long, coiled tube that rests on the backside of each testicle. It transports and stores sperm cells that are produced in the testes. It also is the job of the epididymis to bring the sperm to maturity, since the sperm that emerge from the testes are immature and incapable of fertilization. During sexual arousal, contractions force the sperm into the vas deferens.
  • 9. VAS DEFERENS • The vas deferens is a long, muscular tube that travels from the epididymis into the pelvic cavity, to just behind the bladder. The vas deferens transports mature sperm to the urethra, the tube that carries urine or sperm to outside of the body, in preparation for ejaculation.
  • 10. EJECULATORY DUCTS • These are formed by the fusion of the vas deferens and the seminal vesicles. The ejaculatory ducts empty into the urethra.
  • 11. URETHRA • The urethra is the tube that carries urine from the bladder to outside of the body. In males, it has the additional function of ejaculating semen when the man reaches orgasm. When the penis is erect during sex, the flow of urine is blocked from the urethra, allowing only semen to be ejaculated at orgasm.
  • 12. SEMINAL VESICLES • The seminal vesicles are sac-like pouches that attach to the vas deferens near the base of the bladder. The seminal vesicles produce a sugar-rich fluid (fructose) that provides sperm with a source of energy to help them move. The fluid of the seminal vesicles makes up most of the volume of a man's ejaculatory fluid, or ejaculate.
  • 13. PROSTATE GLAND • The prostate gland is a walnut-sized structure that is located below the urinary bladder in front of the rectum. The prostate gland contributes additional fluid to the ejaculate. Prostate fluids also help to nourish the sperm. The urethra, which carries the ejaculate to be expelled during orgasm, runs through the center of the prostate gland.
  • 14. BULBOURETHRAL GLANDS • Also called Cowper's glands, these are pea-sized structures located on the sides of the urethra just below the prostate gland. These glands produce a clear, slippery fluid that empties directly into the urethra. This fluid serves to lubricate the urethra and to neutralize any acidity that may be present due to residual drops of urine in the urethra.
  • 16. DESCRIPTION • The female reproductive system is made up of the internal and external sex organs that function in reproduction of new offspring. In the human the female reproductive system is immature at birth and develops to maturity at puberty to be able to produce gametes, and to carry a fetus to full term. The internal sex organs are the uterus, Fallopian tubes, and ovaries. The uterus or womb accommodates the embryo which develops into the fetus. The uterus also produces vaginal and uterine secretions which help the transit of sperm to the Fallopian tubes. The ovaries produce the ova (egg cells). The external sex organs are also known as the genitals and these are the organs of the vulva including the labia, clitoris, and vaginal opening. The vagina is connected to the uterus at the cervix.
  • 17. LABIA MAJORA • The labia majora enclose and protect the other external reproductive organs. Literally translated as "large lips," the labia majora are relatively large and fleshy, and are comparable to the scrotum in males. The labia majora contain sweat and oil-secreting glands. After puberty, the labia majora are covered with hair.
  • 18. LABIA MINORA • Literally translated as "small lips," the labia minora can be very small or up to 2 inches wide. They lie just inside the labia majora, and surround the openings to the vagina (the canal that joins the lower part of the uterus to the outside of the body) and urethra (the tube that carries urine from the bladder to the outside of the body).
  • 19. BARTHOLIN’S GLAND • These glands are located beside the vaginal opening and produce a fluid (mucus) secretion.
  • 20. CLITORIS • The two labia minora meet at the clitoris, a small, sensitive protrusion that is comparable to the penis in males. The clitoris is covered by a fold of skin, called the prepuce, which is similar to the foreskin at the end of the penis. Like the penis, the clitoris is very sensitive to stimulation and can become erect.
  • 21. VAGINA • The vagina is a canal that joins the cervix (the lower part of uterus) to the outside of the body. It also is known as the birth canal.
  • 22. UTERUS • The uterus is a hollow, pear-shaped organ that is the home to a developing fetus. The uterus is divided into two parts: the cervix, which is the lower part that opens into the vagina, and the main body of the uterus, called the corpus. The corpus can easily expand to hold a developing baby. A channel through the cervix allows sperm to enter and menstrual blood to exit.
  • 23. OVARIES • The ovaries are small, oval-shaped glands that are located on either side of the uterus. The ovaries produce eggs and hormones.
  • 24. FALLOPIAN TUBE • These are narrow tubes that are attached to the upper part of the uterus and serve as tunnels for the ova (egg cells) to travel from the ovaries to the uterus. Conception, the fertilization of an egg by a sperm, normally occurs in the fallopian tubes. The fertilized egg then moves to the uterus, where it implants into the lining of the uterine wall.