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Body Logistics > The Breast > Flashcards

Flashcards in The Breast Deck (16):
1

What type of gland is the breast?

Modified apocrine sweat gland

2

By which type of secretion is milk released from the breast?

Apocrine secretion

3

What is the role of myoepithelial cells in mammary glands?

Line mammary glands, contract to push milk through the lactiferous duct and through the nipple pores

4

What duct does milk leave the mammary gland in?

Lactiferous duct

5

Through which structure of the breast does milk leave?

Nipple pores

6

What are the brown circles around the nipples called?

Areolae

7

What is the function of the areolae?

Secrete lipoid fluid from areolar gland to moisturise the nipple

8

The breast is supported by...

Suspensory ligaments

9

What happens during lactation once a baby begins suckling?

Mechano-receptors in the nipple stimulated, signal sent to the hypothalamus
Signal from hypothalamus to the posterior pituitary ---> oxytcin released
Signal from hypothalamus to anterior pituitary ---> prolactin inhibiting hormone inactivated ---> prolactin released

10

What effect does the release of oxytocin have?

Stimulates myoepithelial cells to eject milk

11

What effect does the release of prolactin have?

Stimulates the production of milk

12

Prolactin is released in the...

Anterior pituitary

13

Oxytocin is released in the...

Posterior pituitary

14

What hormones are responsible for breast development during puberty?

Oestrogen
Progesterone

15

Breasts are finally matured during...

First pregnancy

16

Which arteries supply the breast?

External mammary artery
Internal mammary arteries
Inter-costal arteries