What is an Alveolus - Small cavity where milk is produced and stored
- made of epithelial cells
What are Alveoli? - multiple alveolus
What is the Intra-lobular duct? - Connects a lobule to the lactiferous ducts
What is a Mammary Lobule? - 10-100 alveoli combined together
What are Lactiferous Ducts? - connects mammary lobules/intra-lobular ducts to the nipple
Breast Anatomy -
What surrounds the breast tissue? - Fat
Nerves
Lymph Tissue
Vascular Network
Myoepithelial Cells
What is the purpose of the Myoepithelial cells? - They surround the alveolus and contract (like a muscle)
- pushes milk out into the ducts
What is the purpose of the Vascular Network surrounding breast tissue? - - supplies nutrients, materials,
hormones to each alveolus for milk production
- supplies hormones to the myoepithelial cells for ejection of milk
What is the purpose of fat surrounding breast tissue? - protection
support
provides space for growth
What purpose do nerves serve in the breasts? - Intercostal nerves 3, 4 and 5 deal with breast tissue
- innervation to the nipple tells the brain to produce oxytocin when breast feeding
- emptying of the alveolus tells the breast to make more milk
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