Describe mammary gland

The mammary gland is one of the main characteristics of all mammals. When it comes to female mammals its main characteristic is to produce milk, while in males, the mammary gland is nonfunctional.

Explanation:

The mammary gland of a woman consists of a glandular tissue, divided in different quantities of fat, which gives an authentical shape to the gland. This tissue is made of 15 - 20 lobes composed of ductal cells.

Each lobe has many smaller lobules separated by Cooper's ligaments. These lobules connect the skin with the fascia of connective tissue that covers the muscles beneath the breast. The lobes have a separate excretory duct under the nipple, where they widen into milk supplies and then narrows again towards an opening at the summit of the nipple.

Each mammary gland is boarded with a circular disk from the outside, which is called the areola. Areolas cause the nipples to be firm upon each stimulation and provide lubrication for the nipple during nursing.