Human Development — Fertilization → Birth

1. Fertilization most commonly occurs in the:

ampulla of uterine tube

2. Capacitation refers to:

sperm becoming fertilization capable

3. The blastocyst’s trophoblast develops into the:

placenta.

4. Implantation typically occurs around:

day 6-7

5. Which germ layer forms the nervous system?

ectoderm.

6. The ductus arteriosus connects the:

pulmonary artery to the aorta.

7. Surfactant production begins around:

20-24 weeks

8. First stage of labor is:

dilation