Before revision: Anatomy The breast: cross-section scheme of the mammary gland: In mammals, a nipple (also called mammary papilla or teat) is a small projection of skin containing the outlets for 15–20 lactiferous ducts arranged cylindrically around the tip.
After revision: Structure The breast: cross-section scheme of the mammary gland: In mammals, a nipple (also called mammary papilla or teat) is a small projection of skin containing the outlets for 15–20 lactiferous ducts arranged cylindrically around the tip.