Raena AI
Your AI Study Solution
🇬🇧
EN
Create free account
Question 1 of 49
What is the primary role of the syncytiotrophoblast cells during implantation?
A. To maintain the corpus luteum.
B. To form the embryonic membranes.
C. To enable the blastocyst to penetrate the uterine lining.
D. To secrete human chorionic gonadotropin.