-The chorion is the outermost extraembryonic membrane that gives rise to the placenta.
- The corpus luteum secretes large quantities of progesterone.
- From the 8th week of gestation through delivery, the developing cells are known as a fetus.
- The corpus luteum secretes large quantities of progesterone.
- From the 8th week of gestation through delivery, the developing cells are known as a fetus.