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प्रश्न
With a suitable diagram, describe the organisation of mammary gland.
उत्तर
A functional mammary gland is characteristic of all female mammals. The mammary glands are paired structures (breasts) that contain glandular tissue and variable amount of fat. The glandular tissue of each breast is divided into 15 – 20 mammary lobes containing clusters of cells called alveoli. The cells of alveoli secrete milk, which is stored in the cavities (lumens) of alveoli.
The alveoli open into mammary tubules. The tubules of each lobe join to form a mammary duct. Several mammary ducts join to form a wider mammary ampulla which is connected to lactiferous ducts through which milk is sucked out.
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संबंधित प्रश्न
Mention the functions of Uterus in the human female reproductive system.
Explain with examples types of asexual reproduction in unicellular organisms.
After puberty human female shows cyclic changes in her reproductive system. Explain structural and hormonal changes in the uterus.
(OR)
Give reasons :
(1) Scrotal sac serves as thermoregulator.
(2) Corpus luteum gets converted into corpus albicans in absence of fertilization.
(3) Missing of menses is the first indication of pregnancy.
(4) Surgical sterilization is a permanent method of birth control. (5) Human egg is microlecithal.
Name the following:
The organ of female in which the foetus develops.
Write the functional activity of the following structure:
Ovary
Hormones secreted by the ovary of the female reproductive system.
All are associated with ovulation in human female, EXCEPT
Which among the following diseases is not sexually transmitted?
The ______ is also called the womb.
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
