menopause physiology

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Menopause Physiology

Menopause is a period within which a woman loses her menstrual periods which is established when a woman goes through 12 months without having menses . A variety of signs are experienced in menopause due to hormonal variations in the body . In addition , there is loss of bone density and increase in the level of cholesterol hence the increased risk of cardiovascular disease . Two kinds of menopause occur in women- premature and perimenopause . In the US , the average age at which women

get into menopause is 51 , but the standard age of menopause is 48-55 years . In a few cases , however , menopause begins as early as 40 , hence termed as premature . Late menopause occurs beyond 55 years . Premature menopause has a likelihood of occurring in women who smoke and those who have never had pregnancy . The hormones associated with menopause take effect before the final menstrual phase , normally within a 5 year period , hence perimenopause . Surgical menopause occurs when ovaries are amputated through surgical means (The Columbia Encyclopedia , 2007

The onset of menopause is triggered by the failure of the ovary to respond as a result of the stimulus evoked by gonadotropin hormone Normally , a female human is born with ovaries holding an estimate of 2 million primordial follicles , each one having a single ovum Nevertheless not all the ova and follicles grow though the development period at puberty an estimate of 300 , 000 follicles are present Furthermore , all through the age of 13...