menstrual cycle in women

Menstrual Cycle in Women - In women, reproductive phase begins with the onset of menses at about the age of 13 years. It ends with its cessation (menopause) at about the age of 45 - 49 years. During this reproductive period, the ovaries and the female reprodu..

In women, reproductive phase begins with the onset of menses at about the age of 13 years. It ends with its cessation (menopause) at about the age of 45 - 49 years. During this reproductive period, the ovaries and the female reproductive tract undergo a series of cyclic changes whic..

At about the age of 10 to 13 years, the ovaries of females are stimulated by the follicle stimulating hormone (FSH) of the pituitary. This is called the onset of puberty and is accompanied by release of hormones oestrogen and progesterone. These hormones control the production of ova or eggs and ap..

At about the age of 10 to 13 years, the ovaries of females are stimulated by the follicle stimulating hormone (FSH) of the pituitary. This is called the onset of puberty and is accompanied by release of hormones oestrogen and progesterone. These hormones control the production of ova or eggs and a..

At about the age of 10 to 13 years, the ovaries of females are stimulated by the follicle stimulating hormone (FSH) of the pituitary. This is called the onset of puberty and is accompanied by release of hormones oestrogen and progesterone. These hormones control the production of ova or eggs ..

It lasts for about 3 - 5 days and extends from the 1 s t - 4 t h day of the menstrual cycle. When fertilisation of ovum does not take place, the corpus luteum starts degenerating. The level of progesterone in the blood starts decreasing. The uterine tissues fail to be maintained..

The cyclic changes in the ovary and uterus are under the control of estrogen and progesterone hormones whose secretion is under the control of gonadotropic hormones secreted by anterior pituitar..

. The property of enlargement of penis during sexual excitement and later contraction to normal size is attained at this stage. In girls, during adolescence, many morphological changes occur. Puberty sets in between 10 - 14 years. It is characterised by the beginning of ovulation and the menst..

It is also called as secretory phase or the post - ovulatory phase. It lasts for about 12 - 14 days and extends from the 16 t h - 28 t h day of the menstrual cycle. During this period cells of the ruptured follicle enlarge and form golden coloured corpus luteum. It grows for abo..

Aristotle, the famous Greek philosopher was of the opinion that menstrual fluid produced by women is the impure female semen. These fluids combine at the time of mating. He also held that the female semen just provides the inert substance while the vital ingredient required for ..