Explanation

A- Mammary duct, B-Mammary duct, C-Lactiferous duct, D-Areola The glandular tissue comprises about 15-20 lobes in each breast. Each lobe is made up of number of lobules. Each lobule is composed of grape like cluster of milk secreting glands termed as alveoli. When milk is produced, it passes from alveoli into mammary lobules and into the mammary ducts Internally, the breast consists of the glandular tissue forming mammary glands, the fibrous tissue (connective tissue) and the fatty or adipose tissue. Mammary glands are modified sweat glands