Mammary alveolus

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Mammary alveolus
Anatomical terminology

A mammary alveolus (plural: alveoli, from Latin alveolus, "little cavity") is a small cavity or sac found in the mammary gland.[1][2] Mammary alveoli are the site of milk production and storage in the mammary gland.[1][2] Mammary alveoli cluster into groups called lobules, and each breast may contain 15–20 of these lobules.[1][2] The lobules drain milk through the lactiferous ducts out of the nipples.[1][2]

See also[edit]


  1. ^ a b c d Susan Blackburn (14 April 2014). Maternal, Fetal, & Neonatal Physiology. Elsevier Health Sciences. pp. 146–. ISBN 978-0-323-29296-2.
  2. ^ a b c d "SEER Training: Breast Anatomy". National Cancer Institute. Retrieved 9 May 2012.