Mammary Gland- Shaw Flashcards
Describe the flow through ducts in the breast
Intralobular Duct Interlobular Duct Lactiferous duct Lactiferous sinus Lactiferous duct Nipple
What sort of epithelium lines the ducts in the breast?
Simple cuboidal
What is with-in a TDLU? (terminal duct lobular unit)
Extralobular terminal duct
Intralobular terminal duct
Lobule
What is the functional unit of the breast?
Lobule
What is the function of the areolar glands?
Intermediate structure between sweat gland and true mammary gland
Produces oily secretions that keep the areola and nipple lubricated and protected
What causes the mammary glands in women to change at puberty?
Deposition of fat cells in the interlobular connective tissue
During what period of time are the glandular portion of the mammary gland in an “inactive state”
From puberty until first pregnancy
When do the secretory units at the end of the duct system develop?
First pregnancy
What cells respond to oxytocin and contract to help expel milk from the ducts?
Myoepithelial cells
What hormone stimulates duct proliferation?
Estrogens
What hormone stimulates alveolar proliferation?
Progesterone
What hormone promotes maturation of ducts and milk production?
Prolactin
