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प्रश्न
Choose the correct answer:
First menstrual cycle is known as ___________
विकल्प
menopause
amenorrhoea
puberty
Menarche
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उत्तर
First menstrual cycle is known as menarche
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संबंधित प्रश्न
State the main function of the Sperm duct.
What are the organs in humans which produce the gametes?
Which part of the human body produces ova?
What name is given to the fusion of sperm and ovum?
Describe the process of fertilisation in humans and development of embryo briefly.
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? When is the human female said to have attained at this stage?
(c) After how much time is this process repeated? For how many days does 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 does this process stop temporarily but start again?
(f) At which approximate age of human female does this process stop permanently?
In humans, sperm production occurs in the organ ______.
Give the functions of the following:
Vagina
The mature sperms are stored in the ____________.
Given below are the events in human reproduction. Write them in correct sequential order.
Insemination, gametogenesis, fertilisation, parturition, gestation, implantation
