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MONKEY DIFFERS FROM A MAYA BECAUSE OF ITS MAMMARY GLAND
Because of the presence of mammary glands, monkeys are classified as mammals. Males have a rudimentary and typically nonfunctional mammary gland, which produces milk and is found in all female mammals. The endocrine system controls the function of the mammary glands, which develop in response to the hormonal changes that occur during pregnancy.
What is the function of mammary glands?
Gestures of the Mammalian
- The mammary glands are modified sweat glands that generate milk on a functional level. The pectoralis major muscles, which are placed above the mammary glands in the breast, are present in both sexes, but are normally exclusively functional in the female.
- Each breast has a raised nipple on the outside, which is surrounded by the areola, a circular pigmented area on the inside. Because they contain smooth muscle that contracts and causes them to become erect in response to stimulation, the nipples extremely sensitive to touch.
- The nipple is surrounded by 15 to 20 lobes of glandular tissue in the adult female breast. Connective tissue and adipose tissue separate the lobes. The connective tissue in the breast aids in its support. Suspensory (Cooper's) ligaments are a type of connective tissue that runs from the skin to the underlying muscles through the breast. The size and form of the breast is determined by the amount and distribution of adipose tissue. The glandular units are contained in lobules in each lobe. The milk is carried to the nipple by a lactiferous duct, which gathers it from the lobules within each lobe. The lactiferous duct enlarges to produce a lactiferous sinus (ampulla) just before the nipple, which functions as a milk reservoir. The duct narrows again after the sinus, and each duct on the nipple's surface opens individually.
- Hormones control the function of the mammary glands. The growth of glandular tissue in the female breast is stimulated by increased estrogen levels during puberty. Through the buildup of adipose tissue, estrogen also causes the breast to expand in size. The growth of the duct system is aided by progesterone. These hormones aid in the development of the mammary glands during pregnancy. The anterior pituitary's prolactin encourages the creation of milk in the glandular tissue, and oxytocin causes the glands to discharge milk.
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