The breast is split up into 15-20 separate sections known as the breast
The connective tissue structures which act to support the breast's fatty tissue are known as ligaments
Which of the following describes the functional unit of secretory breast tissue?
Terminal Duct Lobular Unit
Terminal Secretory Unit
Distal Secretory Unit
Distal Duct Lobular Unit
The structures by which the Terminal Duct Lobular Units drain into in order to deliver milk to the nipple are known as Ducts
Label the intra and extralobular ducts shown on the histology slide
Which type of tissue is labelled on the below diagram? _________ Tissue
The cells labelled on the below slide surround the secretory cells of the Terminal Duct Lobular Unit. What are they called? Cells
Which cells, present in the secretory lobules of the breast, facilitate contraction thus aiding milk excretion? cells
Which Immunoglobulin is found in the highest concentration in breastmilk?
IgA
IgG
IgE
IgD
Which immunoglobulin is most commonly found in the blood?
The nipple has a core of which two tissues mainly?
Dense irregular connective tissue
Dense regular connective tissue
Smooth muscle
Adipose tissue
Near the surface of the skin the lactiferous ducts are lined by ❌ epithelium, however deeper it is lined by ❌ epithelium.
Match the changes to the stage they occur in pregnancy: ❌ - Plasma cells and lymphocytes infiltrate the nearby connective tissue ❌ - Proliferation of the myoepithelial cells and epithelial cells of the glands ❌ - Development of extensive rough endoplasmic reticulum
During pregnancy there is a drastic decrease increase( decrease, increase ) in the adipose tissue content of the breast
During pregnancy there is a drastic decrease increase( decrease, increase ) in the connective tissue content of the breast
❌ secretion = Droplets are secreted surrounded by membrane and carrying a small amount of cytoplasm with it. ❌ secretion = Substances secreted in vesicles which merge with the apical membrane to release only their contents into the ductal system.
Merocrine Apocrine Endocrine Exocrine( Merocrine, Apocrine, Endocrine, Exocrine ) secretion is also known as exocytosis
Breast milk is approximately 88% water lipid carbohydrate protein ions, vitamins and IgA( water, lipid, carbohydrate, protein, ions, vitamins and IgA )
The proteins secreted into the breast milk are forged in the rough smooth( rough, smooth ) endoplasmic reticulum
The proteins secreted into breast milk are folded, packaged, etc by which cellular structure? The
Which type of secretion is responsible for the release of protein and lipid into the breast milk? Protein = Merocrine secretion Apocrine secretion( Merocrine secretion, Apocrine secretion ) Lipid = Apocrine secretion Merocrine secretion( Apocrine secretion, Merocrine secretion )
Which of the following sites of the breast is most commonly affected by breast cancer?
Lactiferous Ducts
Terminal Duct Lobular Units
Adipose Tissue
Suspensory Ligaments
How many lactiferous ducts supply each breast lobule?
1
2
3
10
During pregnancy, the terminal duct lobular units increase decrease( increase, decrease ) in size.
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