Podcast
Questions and Answers
Which layer of the blastocyst enables it to penetrate the uterine lining?
Which layer of the blastocyst enables it to penetrate the uterine lining?
- Chorion
- Cytotrophoblast
- Endometrium
- Syncytiotrophoblast (correct)
When does implantation of the blastocyst occur?
When does implantation of the blastocyst occur?
- During the second week of development
- 2 to 4 days after fertilization
- 7 to 8 days after fertilization (correct)
- 6 days after fertilization
What does the cytotrophoblast secrete?
What does the cytotrophoblast secrete?
- Human chorionic gonadotropin (correct)
- Estrogen
- Follicle-stimulating hormone
- Progesterone