A nipple is a small, protruding structure found on the surface of mammary glands in mammals, including humans. Here are the primary aspects of a nipple:
1. **Anatomy**: Nipples are located centrally on breasts and serve as the outlet for milk during breastfeeding. They contain small openings (milk ducts) through which milk is delivered from the mammary glands.
2. **Function**: The primary function of nipples in female mammals is to deliver milk


