Pregnancy and lactation

Question 1

Pregnancy: location and timing

Answer 1

Most commonly in upper end of fallopian tube (ampulla)

Occurs within 1 day of ovulation

Question 2

Pregnancy: implantation

Answer 2

Within the wall of the uterus

6 days after fertilization

Question 3

Pregnancy test

Answer 3

Trophoblasts secretes hCG, which is
detectable in blood 1 week after conception, or
detectable in urine 2 weeks after conception (home test)

Question 4

Lactation: MOA

Answer 4

After labor, decreases in progesterone inhibits lactation.

However, sucking activates it by stimulating nerve, hence increasing oxytocin and prolactin secretion.

Question 5

Lactation: prolactin

Answer 5

induces and maintains lactation

decreases reproductive function

Question 6

Lactation: oxytocin

Answer 6

help with milk letdown

Involved in uterine contraction