External Organs

(a) Scrotum: The scrotum is the Pauch like structure composed by skin devoid of subcutaneous fat. It contains a little muscular tissues. The testes lie in the scrotum.
(b) Penis: The penis lies just in front of the scrotum. It is cylindrical in shape and it is composed of erectile tissues and in volume entry muscles. Normally soft, but fills up with blood and becomes erect when a man is sexually excited. Functions of penis is to deposit semen in the genital tract of the female.
(c) Glens Penis: It is the head of the penis which is triangular in space. It is highly sensitive organ.
(d) Foreskin: It is a small piece of skins which covers glens. It is removed when a man is circumcised.
(e) Public Hair: Public hair grow around the penis after puberty.

Internal Organs

(i)Urethra: It is a tube through which urine and semen pass out of the body.
(ii) Testes: Testes are two into number and lie inside the scrotum outside the abdominal cavity. Testes are male reproductive organs where spermatozoa are formed and male sex hormone produce. Each testes contains up to 300 tubules. Each tubules up to 4 somniferous tubules which in the sperms of produced.
(iii) Epididymis: It is a very long and highly convoluted tube of bout 6 meters length which lies out side and partially encircling the testes. It is made of compact mass of small coiled tubules. It si a place where sperm are produced.
(iv) Vas deferens: It is a thick welled muscular tube that extends from epididymis to ejaculatory duct. It is a route through which sperms travel from epididymis ejaculatory duct.

(v) Ejaculatory duct: It is a small duct about 2 cm. longs and opens to the urinary duct. It passes semen and sperms to the urinary duct.
(vi) Seminal vesicles: The vesicles are to small tubular glands and lying on the posterior side of the bladder. They produce and expel the thick milky fluid that helps to keep spermatozoa alive.
(vii) Prostate glands: It is a small glands which lies behind the urinary bladder. Prostate gland produces a thin milky fluid that forms part of the semen.

Female Reproductive System

Female reproductive system denotes the structure and function of female reproductive organs. The female reproductive organs can also be classified into two types.
1. External Organs: Ii includes public hair, outer labia, inner labia, clitoris, vestibule, hymen, urethral opening, vaginal opening.
2. Internal Organs: It includes vagina, ovaries, fallopian tube and uterus.

External Organs

The female external reproductive organs are collectively known as vulva.
1. Outer Labia: They are two thick fold organs which from the sides of the Vulva. They are composed of skin or fat, blood vessels and nerves. They are about 7.5 cm. long in each sides. They product vulva.
2. Inner Labia: They are two small folds of skin which lie between the upper parts of the outer Labia. The inner labia contains erectile tissues.
3. Clitoris: The clitoris is a small erectile baby which is the situated at he top of the inner labia. It is very sensitive to touch. Stimulating the clitoris can be pleasurable and lead to organism.
4. The vestibule: The vestibule are two small glands situated one on either side of the vaginal orifice. These glands produce lubricating fluid.
5. Perineum: Perineum is a part that extends from the lower part of the vaginal orifice to anus. It is composed by erectile tissue, fat and skin.
6. The Hymen: The hymen is a thin membranous diaphragms which is placed of the orifice of the vagina, thus, separating the external and internal genitals.
7. Urethral Opening: It is a small opening below the clitoris through which urine passes out of the body.
8. Vaginal Opening: It lies below the urethral opening and above the anus. It leads to the vagina, cervix and uterus. It is through the vaginal opening the menstrual blood passes out of the body. The penis may inter during sex and babies are born.

Internal Organs

1. The Vagina: The vagina is a long muscular tube extend from vestibule to cervix. It is about 15 cm. long and 3 to 6 cm. wide which connects the uterus which the external parts. It is composed by erectile tissue, muscle and blood vessels. It is vary flexible.
It serves as a receptacle for the penis and sperm and as a passing for the emergence of the baby into ht out side the world.
2. Uterus: The uterus is a thick, muscular, per shaped organ. It lies between the bladder and rectum. It is the place where the fertilized ovum becomes implanted, receives nourishments and develop over a period of nine months into a baby during pregnancy. There are three parts of the uterus i.e. Founds, baby and cervix.
3. Fallopian Tubes: Fallopian tubes are known as uterine tubes. They are two in numbers. These tubes connect the uterus to the ovaries. They are extended from the sides of the uterus. They are about 10 cm. long each side of the uterus. They passed the ovum from the ovary to uterus. An egg released from one of the ovaries each month, and passes along a uterine tube into the uterus. It also provides sites where fertilization occurs.
4. Ovaries: The ovaries are of oval shape. They are two in number and place one on each side of the uterus below the following tubes. They are 2.5 or 3.5 cm. long 2 cm wide and 1cm thick. They contain large number of immature Ova. They also produce female sex hormone i.e. progesterone and oestrogen.