Answer:
The description of mammary gland is as
follows
(i) The mammary glands are paired structures
(breasts) that contain undeveloped duct system and adipose tissue (fat
containing cells).
(ii) During pregnancy, in
response tooestrogen and progesterone, a glandular system develops for milk
production.
(iii) Glandular tissue of each
breast develops mammary lobes containing clusters of cells called alveoli.
(iv) The cells of alveoli
secrete milk, which is stored in the cavities (lumens) of alveoli.
(v) The alveoli open into
mammary tubules. The tubules of each lobe join to form a mammary duct.
(vi) Several mammary ducts join to form
a wider mammary ampulla which is connected to lactiferous duct through which
milk is sucked out by the baby.
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