Question

Why in humans embryo gets attached to the uterine wall?

Answer 1

Explanation:

1. During the implantation stage in human development, the blastocyst transforms into the embryo and attaches to the uterine wall as the conceptus.
2. When this attachment is effective, the female is regarded as pregnant, and the embryo will start to grow after receiving oxygen and nutrition from the mother.
3. A fertilized ovum normally implants nine days after ovulation, although it can happen anywhere between six and twelve days later.
4. The embryo develops into the fetus, which has distinguishable and visible organs, during the course of the many weeks and phases of pregnancy.
5. The pregnancy ends when the fetus grows to the point that the uterine walls enlarge due to uterine contractions.