what r mammary glands and the composition of milk secreted by them
Answers
A mammary gland is an exocrine gland in mammals that produces milk to feed young offspring. Mammals get their name from the Latin word mamma, "breast". The mammary glands are arranged in organs such as the breasts in primates (for example, humans and chimpanzees), the udder in ruminants (for example, cows, goats, and deer), and the dugs of other animals (for example, dogs and cats). Lactorrhea, the occasional production of milk by the glands, can occur in any mammal, but in most mammals, lactation, the production of enough milk for nursing, occurs only in phenotypic females who have gestated in recent months or years. It is directed by hormonal guidance from sex steroids. In a few mammalian species, including humans, male lactation can occur.
Explanation:
→Human female has a pair of mammary gland (Breasts) that contain glandular tissue and fatty tissue.
→Each glandular tissue is divided into 15 to 20 Mamali lobes consists of a group of alveoli.
→The alvali open into mammary tubules
→The mammary tubules of each lobes open into small mammary duct.
→Several mama redux join to form a wider memory ampulla that is connected to lactiferous duct just before the nipple through which milk is released.