Question

Which organ is first developed in the embryo?

Answer 1

Embryo:

Embryogenesis is the process of an embryo's cellular division and cellular differentiation throughout its early stages of development.

Heart:

1. The heart becomes a functioning organ and begins beating and pumping blood at roughly 21 - 22 days.
2. It takes the shape of a horseshoe at the embryo's head and is made up of cardiac myoblasts and blood channels.