EMBRYO

definition

The term embryo comes from the Greek and means something like "sprout" or "swell". In medicine, an embryo (also: seedling or germ) is the earliest form of development in a living being.
The science of embryos, their development, maturation and formation of organs is called embryology.

Please read on here: Development of the embryo

The first trimester

From the time at which a Egg cell from one Sperm cell fertilized a new organism is created, which is still inside the mother or an egg shell or egg shell.
In this state after the merging, the newly created life is called embryo.
A phase of development begins (Embryogenesis), which means that in humans in about 40 weeks (Calculate the due date) is training a mature baby.

Note

The time span in which one speaks of the embryo includes the moment of fertilization up to the last day of the 8th week of pregnancy.

Until then, it should develop normally

organogenesis (Development of the internal organs) will be largely completed

Facial features like eyes, nose tip, ears and mouth are already recognizable

Usually weighs an embryo now roughly 1.5 grams

From the 9th week of pregnancy one no longer speaks of the embryo, but of the fetus (fetus).
Read more about the development under the topic: Pregnancy process

Embryo Protection Act

Certain cells exist in the embryo, the so-called totipotent stem cellswho are under reasonable conditions still to share and to a full-fledged organism able to train.
So you are hiring for various medical questions interesting material However, this is an area in which there are still many concerns from an ethical point of view.
In Germany that regulates Embryo Protection Actwhat medical handling is allowed for the embryos. This is how it is in Germany, for example forbidden, human embryos to clone or she for therapeutic purposes or use research questions.