Two ovaries and Fallopian tubes in the female reproductive system
The female reproductive system
The female reproductive system consists of two ovaries , two fallopian tubes , the uterus and the vagina , It is called the female genital system , It is made up of the internal and external sex organs which function in the human reproduction .
The female reproductive system is immature at the birth and it develops to maturity at the puberty to be able to produce the gametes and to carry the fetus to full term .
Two ovaries are two glands having the size of a peeled almond , and they lie inside the body in the lower part of the abdominal cavity from the back .
The function of ovaries
The function of two ovaries is the production of the ova , where each ovary releases one ripe ovum every 28 days in exchange with the other ovary in a process known as the ovulation , The ovaries produce the female sex hormones which are Estrogen and Progesterone .
Estrogen is responsible for the appearance of secondary sex characters in the female , Progesterone is responsible for the occurrence and continuity of the pregnancy .
The signs of puberty in the female
The signs of puberty which are the softness of voice , and the occurrence of Mentstrual cycle every 28 days , as long as no pregnancy happens , Menstrual cycle starts at the age of female puberty ( 11 : 14 years ) and stops at the age of menopause .
The accumulation of fats in some body regions , the growth and development of breasts, the growth of hair in armpit and pubic are from the signs of puberty .
Two Fallopian tubes
Two Fallopian tubes are two tubes of funnel – shaped opening provided with finger-like projections , The inner wall of Fallopian tubes lined with cilia , and the two Fallopian tubes are open in the upper corners of the uterus .
The Fallopian tubes receive the ovum and direct it towards the uterus by the aid of the contractions and relaxations of the muscles in the tubes wall and the movement of the lining cilia .
The Fallopian tubes ligation is considered one of the means of birth control because the sperms do not reach the ripe ovum , so the fertilization process does not happen .