A woman’s breasts usually extend from the level of the second rib to the level of the sixth rib in the front of the human
rib cage and are composed mainly of glandular tissue, ducts, adipose tissue and fibrous tissue.

Glandular Tissue

Glandular tissue plays an important role in determining breast size. The glandular tissue is in lobes that are connected to
the nipple by lactiferous ducts. Each breast has 15-20 lobes.

Fibrous Tissue

Fibrous tissue provides firmness and elasticity to the breasts. Cooper’s ligaments (fibrous connective tissue) are largely
responsible for maintaining the shape and structural integrity of the breasts and preventing breast ptosis.

Adipose Tissue

Adipose tissue fills up the spaces between other breast tissues, making the breasts a little fuller and larger. The amount of
fat deposited in the breasts is dependent on genetic factor (DNA) and dietary fat intake.