Histology

Question 1

What is the name of the larger duct closer to the nipple?

Answer 1

Lactiferous ducts

Question 2

What are suspensory ligaments?

Answer 2

Mechanical support for the breast

From nipple to muscle

Question 3

Terminal duct lobular units is made up of what?

Answer 3

Terminal ductules into interlobular collecting ducts into lactiferous duct

Question 4

Where are myoepithelial cells found?

Answer 4

Surround secretory cells - found within the basal lamina

They are contractile

Question 5

What is unusual about sebaceous glands in the nipple?

Answer 5

They end directly on the surface of the skin

Question 6

Changes to the breast only occur during pregnancy. T/F?

Answer 6

F - changes during menstrual cycle

Question 7

Adipose tissue increases or decreases during pregnancy?

Answer 7

Decreases - increase in glands

Question 8

What hormones trigger proliferation of secretory tissue in breast?

Answer 8

Progesterone and oestrogen

Question 9

What antibodies are present in human milk?

Answer 9

IgA - secretory Ig

Question 10

Match:

• Produces lipid part of milk
• Produces protein part of milk
• Apocrine secretion
• Merocrine secretion

This is done by the same cell. T/F?

Answer 10

Apocrine - lipid
Merocrine - protein

T - just two different forms of secretion

Question 11

What happens to the breast tissue post menopause?

Answer 11

The secretory cells degenerate in TDLU (terminal duct lobular unit)