Pregnancy

Question 1

When is the first trimester

Answer 1

0-13 weeks

Question 2

when does miscarriage most frequently occur

Answer 2

first trimester

Question 3

roughly how many conceptions do not complete the first trimester

Answer 3

1/4 to 1/3

Question 4

when is the second trimester

Answer 4

13-26 weeks

Question 5

what is the point of viability

Answer 5

24 weeks

Question 6

when is the third trimester

Answer 6

26-39/40 weeks

Question 7

when is growth rate of the baby greatest

Answer 7

third trimester

Question 8

how does the source of progesterone change during pregnancy

Answer 8

until 8 weeks gestation, the corpus luteum is the main source of progesterone
by 10 weeks gestation, the placenta is the source of all progesterone
(luteo-placental shift)

Question 9

how does the production of DHEA change during pregnancy

Answer 9

at 20 weeks it shifts from mother to fetal adrenals

DNEA is then converted into 17B-estradiol in the placenta

Question 10

what are the functions of the placenta

Answer 10

exchange of nutrients and waste products
connection/anchorage
biosynthesis
immunoregulation

Question 11

define miscarriage

Answer 11

occurs at less than 22 weeks

usually happens in the first trimester

Question 12

define stillbirth

Answer 12

death of an infant within the uterus so that it is delivered without any signs of life
baby born dead after 23rd week of pregnancy