Organogenesis: Development of the organ systems in the embryo.
Ossification: Bone formation.
Organogenesis - The development of the body's organs during the fetal period.
During this stage, the fetus undergoes organogenesis, or the formation of the organs of the body. For instance, the heart begins beating by week 6, BabyCenter reports.
At four weeks, your baby already has a heart and a stomach: this is the start of organogenesis (the development of the major organs).
The limbs aren’t very obvious yet.
The nervous system is developing.
 See also: Pregnant, Pregnancy, During pregnancy, Due date, Ovulation
|
