T1 L9: Lactation and Prolactinomas

Question 1

What is the secretory initiation of Lactogenesis?

Answer 1

Controlled by progesterone

Occurs during pregnancy

Colostrum is produced

Question 2

What is the Secretory activation of Lactogenesis?

Answer 2

Progesterone levels form and prolactin levels go up

Copious amounts of milk are produced 2-3 days postpartum

Question 3

What is Galactopoiesis?

Answer 3

The maintenance of lactation once lactation has been established

Question 4

What are some mechanical regulations of lactation?

Answer 4

Regular removal of milks and nipple stimulation

Question 5

What are some hormonal regulations of lactation?

Answer 5

Prolactin form the anterior pituitary gland

Oxytocin from the posterior pituitary gland

Question 6

Where is prolactin produced?

Answer 6

By lactotrophs of the anterior pituitary gland

Question 7

What hormone inhibits prolactin?

Answer 7

Dopamine

Question 8

What stimulates the release of prolactin?

Answer 8

By 5HT (Serotonin), TRH, and oxytocin

Question 9

What is lactational amenorrhoea?

Answer 9

The contraceptive effect of lactation that is dependent on frequency and duration of breast feeding