Breast Intro/Normal Flashcards
When we are thinking of embryology of the breast, what is the breast and what does it derive from?
Modified sweat gland.
Skin
What and where is the milk line?
Breast tissue develops from the milk line and runs from the axilla to the vulva.
What is the functional unit of the breast?
Terminal duct lobular unit
What is the job of the lobule and the duct?
Lobule makes the milk and the duct drains it to the nipple
What is unique about the epithelium in the terminal ducts and the lobules in the breast?
Two layers. Inner luminal layer and an outer myoepithelial layer than has contractile capacity.
What part of the breast has the highest density of breast tissue after breast development?
Upper outer quadrant
How do we define galactorrhea?
Milk production outside of lactation
Galactorrhea is not a symptom of what disease?
Breast cancer
2 common causes of galactorrhea?
Pituitary adenoma (lactotroph adenoma) and some drugs can