Cytology

Question 1

Luminal epithelium

Answer 1

Inner layer- actually secrets cells of the TDLU (where cancer begins on cellular level)

Question 2

Myoepithelium (muscle)

Answer 2

Middle layer- acts as a barrier to keep everything inside the duct

Question 3

Basement or basal membrane

Answer 3

Outer layer- that holds it all together and responds to hormonal fluctuations

Question 4

Ductal carcinoma

Answer 4

Most common form of breast cancer (cancer inside the milk ducts)

Question 5

In situ

Answer 5

Cancer remains in area it originated

Question 6

The breast receives most of its blood supply from

Answer 6

1) axillary artery
2) internal thoracic artery (mammary artery)

Question 7

The breast receives the smallest blood supply from the

Answer 7

1) intercostal artery

Question 8

Axillary nodes receive how much drainage from the breast?

Answer 8

75-90%

Question 9

How many axillary lymph nodes are there?

Answer 9

20-30

Question 10

Parasternal nodes receive how much of the drainage

Answer 10

10-25%

Question 11

An average breast has

Answer 11

50% glandular tissue and 50% fat and compress to 4.2 cm

Question 12

Breast density and size increase during pregnancy and lactation due to increases of which hormone

Answer 12

Prolactin

Question 13

Estrogen and progesterone and produced by what?

Answer 13

The ovaries

Question 14

Estrogen produces the

Answer 14

Ducts