Human Development

Question 1

Where does fertilization occur

Answer 1

Ampulla

Question 2

How does female reproductive system help sperm

Answer 2

Orgasm contractions, cervical mucus becomes thinner, chemical attractants

Question 3

What fills the acrosome

Answer 3

Enzyme that breaks the shield on the egg

Question 4

Capacitation

Answer 4

Activation of the acrosome

Question 5

How long is the egg viable post ovulation

Answer 5

12-24 hours

Question 6

Optimal window of opportunity

Answer 6

Few days to 14 hours before ovulation

Question 7

First trimester

Answer 7

0-12 weeks

Question 8

When can we measure the HCG (pregnancy test)

Answer 8

2 weeks after last period

Question 9

Second trimester

Answer 9

13-24 weeks

Question 10

Third trimester

Answer 10

25-40 weeks

Question 11

When is fetus putting on weight

Answer 11

Third trimester

Question 12

When is implantation successful

Answer 12

2 weeks - preembryonic stage

Question 13

When is placenta developing

Answer 13

Fetal stage

Question 14

Outer layer of blastocyst

Answer 14

Trophoblast

Question 15

Trophoblast becomes…

Answer 15

Placenta

Question 16

Inner mass of cells of blastocyst

Answer 16

Embryoblast

Question 17

Embryoblast becomes

Answer 17

Embryo

Question 18

What helps maintain corpus luteum

Answer 18

HCG

Question 19

3 primordial tissues

Answer 19

Endoderm, ectoderm, mesoderm

Question 20

What develops into yolk sac

Answer 20

Hypoblast

Question 21

What replaces hypoblast

Answer 21

Endoderm

Question 22

Ectoderm forms

Answer 22

Nervous system, epidermis, some sense organs, some glands

Question 23

Mesoderm

Answer 23

Bones, muscle, connective tissue, blood, and vessels

Question 24

Endoderm

Answer 24

Digestive and respiratory tracts, some glands

Question 25

Chorion

Answer 25

Forms the fetal part of the placenta

Question 26

Veins take

Answer 26

Oxygenated blood to fetus

Question 27

Fetus nourished in three ways

Answer 27

Uterine milk, trophoblastic nutrition, placental nutrition