The Heart.
The heart is the first organ to develop in a fetus. Together, blood and the circulatory system, that is powered by the heart, form the first organ system.
The first organ to develop in the embryo is the heart. In a fetus, there is a brain, but it isn't fully developed and can't understand signals from the nervous system. Therefore the first functional organ would be the heart. But the first thing to start developing in a fetus is the nervous system. ( no that isn't an organ )
The first organ to develop in the embryo is the heart. In a fetus, there is a brain, but it isn't fully developed and can't understand signals from the nervous system. Therefore the first functional organ would be the heart. But the first thing to start developing in a fetus is the nervous system. ( no that isn't an organ )
That organ is called as uterus. The size of the uterus is 3*2*1 inches. It enlarges to enormous size to accommodate the fetus.
The first organ to develop in the embryo is the heart. In a fetus, there is a brain, but it isn't fully developed and can't understand signals from the nervous system. Therefore the first functional organ would be the heart. But the first thing to start developing in a fetus is the nervous system. ( no that isn't an organ )
The umbilical cord supplies the fetus' oxygen.
No. The uterus is the only organ capable of supporting the implantation of the blastocyst, which gives it the oxygen and nutrients it needs to develop into an embryo.
The organ where the developing fetus resides is called the uterus. This is where the fetus grows and matures inside the female.
Fetus
the placenta
Placenta