> All parts of the body are built like this.
Please name one other organ that arises from two separate progenitor cell types. If this is common, I have never heard of it.
> All parts of the body are built like this.
Please name one other organ that arises from two separate progenitor cell types. If this is common, I have never heard of it.
Well, your heart contains both mesoderm derived cells (enervation) and ectoderm derived cells (musculature).
Bones, guts, many glands, kidneys.