An Embryo is a living thing in its earliest stages of development. An embryo is formed by the union of a male sec cell with a female sex cell.
The Developmental of an Embryo
During prenatal (before Birth) development in humans, a single fertilized egg divides into the billions of specialized cells in the newborn baby. Once the basic body shape and organs have begun to form, which occurs by the end of the first weeks, the embryo is called a fetus. At the end of a normal, nine month pregnancy, the fetus will be about 20 in. long and weigh about 7.3 lb.
Fertilization of the egg takes place in the woman’s body in a structure called the fallopian tube. The fallopian tube is part of the female reproductive system and leads from the ovary (where the baby develops).
The Development of a Zygote
The fertilized egg is called a zygote. As the zygote moves down the fallopian tube toward the uterus, it begins to divide by mitosis. Mitosis is the process of cellular division in which the entire cell, including the chromosomes, produces a copy of itself and then divides. This division produces two identical cells that are identical to the original cell.
The two cells become four cells, then eight, and so on until a small, solid ball of cells called a morula is formed. This mass of cells continues dividing, forming a hollow, tennis ball like blastula. The blastula has an inner and an outer layer of cells. In preparation for the blastula, the wall of the uterus becomes thick and rich in blood.
Embryo on the Uterus
The outer layer of the blastula, the trophoblast, attaches itself to the thickened wall of the uterus and begins the formation of a placenta and an umbilical cord. These structures allow oxygen and food to pass from the mother’s blood to the baby’s blood, and wastes to pass from the baby’s blood to the mother’s. it takes like about 2 months for the placenta and umbilical cord to be fully developed.
Progress of an Embryo
As months pass, the embryo develops on the 6 months, the baby should have developed finger nails, hair, eyes, brain, arms, feet, etc… and on the 8th month, the baby is now then forming its lungs and ready to get out and meet the world.
After 9 months, embryo which is now formed to be a Baby, is now ready to see mommy and daddy!
For women’s that are pregnant or planning to be, you should eat healthy foods, for it will be best for your baby. Because when the lungs and brains starts forming and you don’t eat a good healthy food, your baby will get affected by your eating habits. We all want a healthy a baby right?