2007-01-04 23:56:35 · 5 answers · asked by Dana S 1 in Science & Mathematics ➔ Biology
The two broad categories of mammalian stem cells exist: embryonic stem cells, derived from blastocysts, and adult stem cells, which are found in adult tissues.
Adult stem cells are undifferentiated cells found throughout the body that divide to replenish dying cells and regenerate damaged tissues. Also known as somatic stem cells, they can be found in children, as well as adults.
Placentas and umbilical cords are rich in stem cells.
So are some adult tissues like BONE MARROW and the NEURAL PROGENITOR CELLS of NERVOUS SYSTEM.
Already scientists treating cancer and doing research on leukemia are using blood cell-producing stem cells from bone marrow as well as stem cells from the umbilical cords in live births.
2007-01-05 00:01:14 · answer #1 · answered by Som™ 6 · 0⤊ 0⤋
parts human body stem cells
2016-05-23 05:35:26 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Assuming we're talking about "adult" human bodies here:
1. Satellite cells from muscles
2. Nueral progenitor cells from the nervous system
3. Bone marrow stomal cells
2007-01-05 01:05:41 · answer #3 · answered by floundering penguins 5 · 0⤊ 0⤋
no parts do. stem cells are cells that are growing. Pretty much after your born you dont have any more stem cells.
2007-01-05 00:04:44 · answer #4 · answered by twiggy81r 2 · 0⤊ 1⤋
The umbilical cord when you have a baby.
2007-01-04 23:59:02 · answer #5 · answered by Silence06 2 · 0⤊ 1⤋