Hormones and Composition of Milk

Question 0

What hormone rises in a dramatic curve throughout gestation and peaks at 5000 delivery?

Answer 0

Placental lactogen- milk is synthesized and secreted

Question 1

What hormone peaks at 10 weeks gestation?

Answer 1

hCG

Question 2

What hormone rises steadily from about 10 at 10 weeks gestation until it reaches about 120 at delivery?

Answer 2

Prolactin

Question 3

Which hormone is elevated dramatically when baby suckles?

Answer 3

Prolactin

Question 4

What happens to estradiol (primary estrogen) between birth and 10 weeks postpartum?

Answer 4

Drops significantly

Question 5

List the 4 shapes of breasts

Answer 5

Conical, convex, pendulous, large pendulous

Question 6

Name the 3 muscles that are in close proximity to the breasts

Answer 6

Pectoralis major, pectoralis minor, intercostal

Question 7

What 2 main arteries supply the breasts?

Answer 7

Internal mammary art., lateral thoracic art

Question 8

Describe lactogenesis stage 1

Answer 8

Ductular and lobular proliferation prepare mammary gland to secrete colostrum. Pregnancy hormones prevent milk synthesis

Question 9

Describe lactogenesis stage 2

Answer 9

Onset of copious milk secretion, occurs during first 4 days postpartum

Question 10

What causes colostrum to appear yellow?

Answer 10

High carotene content ( vitamin a- antioxidant )

Question 11

Compared with mature milk, colostrum is higher/lower in protein, fat and carbohydrate? How many calories per oz?

Answer 11

Higher protein, lower fat and carbs

20 cal/oz

Question 12

What is the main immunoglobulin in breast milk?

Answer 12

IgA

Question 13

Milk increases in volume to ____ ml/day by 48 hours after delivery.

Answer 13

200 ml/day

Question 14

Immediately after delivery, sodium and chloride levels are high/low? Lactose is high/low?

Answer 14

Na and chl are low, lactose is high

Question 15

What are first antibodies to appear in milk in first few days of lactogenesis?

Answer 15

IgA and lactoferrin