the semsters to devolping a fetus
first sememster
the blastcyst first implants itself the uterline lining and that's where it starts recieving nutrients.
Gastrulation us where cells divides into 3 cell layers call Ectoderm, Mesoderm and Endoderm.
A.Ectoderm develop the skin and the nervous system
B. Mesoderm forms the body’s internal structures such as muscles, bones, blood cells and reproductive organs.
Neurulation the start to developing the nervous system.
After 3 months the tissues and organs are developed.
thrid trimester
the mass of the fetus begin doubling
there lungs and organs continues to mature, preparing life for outside
the eyelids starts to blink
the body begins storing nutrients and minerals suc as calcium and phosphorus
the brain starrts releasing hormones, that triggers involuntary movement that begins labor
Finally, the amniotic sac and the fetus breaks and that leads to contraction in the uterus which causes the baby to be pushed out
Second sememster
when bone's start to replace the cartiage and start to form an early skeleton
The fetus also starts to devlop form urine and discharing aminiotic fluid
liver and pancreas begin fuctioning
the brain contiunes with devolping
devolpement for females and males fetus
males, prostate gland begin forming
females, ovarian folliclesa begin to form