A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.
A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.
In human beings the first menstruation begins at puberty ( $9$ to $15$ ) and is called menarche. Menstruation cycle stops at the age of $50$ years, it is called menopause. Menarch indicates the preparation of female reproduction system for maturation and pregnancy.
It indicates capacity of ovaries which produce a mature ovum (female gamete) which can fertilize sperm cell and uterus is capable for growth and development of foetus.Menopause indicates that it is not an age to conceive. The capability of providing healthy egg cells is less at this age. The level of producing hormones by ovaries either gets decreased or stops and menstrual cycle is stopped. Uterus does not remain prepared for development of embryo for longer period.
Similar Questions
$A$ : Corpus luteum begins to atrophy after a short life of $10 \;to \;14$ days, if fertilisation does not occur.
$R$ : Luteolysis may be due to withdrawal of $LH$ support
$A$ : Corpus luteum begins to atrophy after a short life of $10 \;to \;14$ days, if fertilisation does not occur.
$R$ : Luteolysis may be due to withdrawal of $LH$ support
Ovulation in the human female normally takes place during the menstrual cycle
Ovulation in the human female normally takes place during the menstrual cycle
- [AIPMT 2004]
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In girl, the first menstruation begins at puberty and is called .....
In girl, the first menstruation begins at puberty and is called .....