Knowing the different parts of your breast will help you to understand how your baby can latch better.  

The areola is the dark circular area around your nipple. Babies usually take this area inside their mouth when latching.

The nipple is the small conical projection around 0.5-1 cm. with darker skin shade. It contains 15-20 lactiferous ducts around the tip that serve as milk outlet.

The lactiferous sinus is the milk duct beneath your areola that stores droplets of milk that can be expressed by compression as babies begin to suckle.

The mammary gland is a gland that produces milk. Breasts of any size have the same amount of mammary glands.