Obstetric and Gynecological Nursing - The Carter Center

Amplulla: the widened-out portion of the duct where milk is
stored. The ampullae lie under the areola.
Blood supply Blood is supplied to the breast by the internal
mammary, the external mammary and the upper intercostals
arteries.Venous drainage is through corresponding vessles
into the internal mammary and axillary veins.
Lymphatic drainage This is largely into the axillary glands,
with some dranage in to the portal fissure of the liver and
mediastinal glands. The lymphatic vessels of each breast
communicate with one another.
Nerve supply The function of the breast is largely controlled
by hormone activity but the skin is supplied by breanches of
the thoracic nerves. There is also some sympathetic nerve
supply, especially around the areola and nipple.
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