Rinnanäärmete

Rinnanäärmete, also known as breast glands or mammary glands, are vital organs in mammals, including humans. Their primary function is the production and secretion of milk, a nutrient-rich fluid essential for nourishing offspring. In females, these glands develop significantly during puberty and undergo further changes in preparation for and during lactation, often following pregnancy. The size and shape of rinnanäärmete can vary greatly between individuals and are influenced by genetics, body fat percentage, and hormonal factors.

Structurally, rinnanäärmete are composed of glandular tissue, connective tissue, and adipose tissue. The glandular tissue contains lobules, which are clusters of alveoli where milk is produced. These alveoli are connected to ducts that eventually converge to form larger ducts, leading to the nipple. The connective tissue provides support and structure, while the adipose tissue contributes to the overall size and contour of the breast.

While primarily associated with milk production, rinnanäärmete can also be affected by various medical conditions. These include benign conditions like cysts and fibroadenomas, as well as more serious conditions such as breast cancer. Regular self-examination and professional medical check-ups are recommended for monitoring breast health. The development and function of rinnanäärmete are regulated by hormones like estrogen, progesterone, and prolactin.