Names of stem cells

If you try to read research articles about Stem Cells, you will need to know some basic nomenclature:

Embryonic Stem Cells are found in newly fertilized eggs, they are the foundation for building life. They have the ability to divide almost endlessly to make more embryonic cells, which is called proliferation.

Once an embryo is a few days old, it has formed a ball of cells called a blastocyst, and the layers of this ball start to differentiate into more specialized types of Stem Cells. There are 3 germ layers in the blastocyst which give rise to these 3 more specialized Stem Cell branches:

1. ectoderm - gives rise to the central nervous system, neurons
2. endoderm - gives rise to the lungs, gastrointestinal tract
3. mesoderm - gives rise to muscles, bone, and blood