menstrual cycle 28

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 and ap..

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 reproductive tract undergo ..

Hormonal Control of Cyclic Changes in Ovaries and Uterus During Menstrual Cycle - 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..

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 which are prim..

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..

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 gro..

It is the period when ovulation and menstrual cycle stops in human female. It sets in about 45 - 55 year..

i) Stimulate the female reproductive tract to grow to full size and become functional. ii) They also stimulate the differentiation of ova in the ovary. iii) They stimulate the development of accessory sex characters such as enlargement of breasts, broadening of pelvis, growth of pubic and axillary..