Question

When a human female reaches a certain age then vaginal bleeding occurs for a few days after regular time intervals.
(a) What is this process known as (i) in scientific terms, and (ii) in everyday language?
(b) At what approximate age this process starts in human females? What is the human female said to have attained at this stage?
(c) After how much time is this process repeated? For how many days this process usually last?
(d) What does the onset of this process in human females signify?
(e) At which particular event in the life of a human female this process stop temporarily but start again?
(f) At which approximate age of human female this process stop permanently?

Answer 1

(a) This process is known as mensuration in scientific terms and periods in common term.
(b) This process starts at the age of 10 -12 years. The human females are said to have attained puberty.
(c) This process is repeated once every 28 days. This process usually lasts 3-5 days.
(d) The onset of puberty signifies that the reproductive system of the human females has started functioning.
(e) The process of mensuration stops temporarily during pregnancy and starts again after its completion.
(f) The end of this phase is called menopause and this usually occurs at the age of 45-50 years.