Final Review: Pregnancy and Lactation

Question 1

Who is a dick?

Answer 1

Martha

Question 2

What activates the ciliated epithelium of fimbriae to beat toward the ostium?

Answer 2

Estrogen

Question 3

Where does fertilization take place?

Answer 3

Ampulla

Question 4

What two hormones aid sperm transport by contractions of the uterus and fallopian tubes?

Answer 4

Prostaglandins & oxytocin

Question 5

What does the acrosome release?

Answer 5

Hyaluronidase

Question 6

Hyaluronidase dissolves what layer of the oocyte?

Answer 6

Corona radiata

Question 7

What penetrates the zona pellucida?

Answer 7

Zona lysin

Question 8

How long does the fertilized ovum travel in the fallopian tube?

Answer 8

3-5 days

Question 9

Progesterone causes relaxation of the uterus to allow entry of the blastocyst into the uterine lumen and is produced by what?

Answer 9

Corpus luteum

Question 10

The outer, smaller cells of the blastocyst divide more rapidly and form the?

Answer 10

Trophoblast

Question 11

Blood vessels within the teritiary villi will dump into vessels running through the?

Answer 11

Allantoic stalk

Question 12

Vessel-filled allantoic stalk is also known as the?

Answer 12

Umbilical cord

Question 13

The chorion + the portion of the uterine endometrium with the trophoblastic lacunae is collectively called the?

Answer 13

Placenta

Question 14

What causes endometrial cells to become enlarged and store nutrients for the early embryo?

Answer 14

Progesterone from corpus luteum

Question 15

What cells provide nutrients for embryo for first week and sometimes up through 8th week?

Answer 15

Decidual cells

Question 16

What is the PO2 of the mother and fetus in the placenta are?

Answer 16

Mother= 50 mmHg
Fetus= 30 mmHg

Question 17

Fetal hemoglobin concentration is about _____% greater than maternal.

Answer 17

50%

Question 18

When a shift operates in one direction in the maternal blood and in the other direction in the fetal blood, it is referred to as?

Answer 18

The double bohr effect

Question 19

What is the term for a shift of the oxygen-hemogloin dissociation curve to the right in response to increases in blood CO2 and H+ ions enhancing release of O2 from blood?

Answer 19

Bohr effect

Question 20

T/F: All foodstuffs diffuse the same way through the placenta.

Answer 20

False, glucose via facilitated diffusion

Question 21

What is secreted by syncytial trophoblast cells into maternal fluids 8-9 days after ovulation but at highest levels during the 10-12 week of pregnancy?

Answer 21

HCG

Question 22

What is estrogen secreted by in the placenta?

Answer 22

Syncytiotrophoblast cells

Question 23

Placental estrogen is created int eh mother’s and fetal _____.

Answer 23

Adrenal glands

Question 24

What is secreted by the anterior pituitary and promotes milk secretion?

Answer 24

Prolactin

Question 25

What is secreted just before and after parturition and is similar to milk without the fat?

Answer 25

Colostrum

Question 26

What is a prolactin inhibitory factor?

Answer 26

Dopamine