Question

What are the two types of stem cells?

Answer 1

Stem cells:

1. The building blocks of the human body are stem cells, which give rise to all other cells with specialized tasks. Stem cells divide to make new cells called daughter cells under the conditions in the body or in the lab.
2. Adult stem cells and embryonic stem cells are the two types of stem cells.

Embryonic stem cells:

1. Embryonic stem cells are found in the inner cell mass of a human blastocyst, a developing embryo that lasts from the fourth to the seventh day after conception (ESCs).
2. They disappear after the seventh day in normal embryonic development and are replaced by the three embryonic tissue layers.
3. Pluripotent stem cells can multiply and transform into any type of cell in the body. Embryonic stem cells can be employed to replace or repair damaged tissue and organs due to their flexibility.

Adult stem cells:

1. Adult stem cells (also known as somatic stem cells or tissue stem cells) are a rare type of cell that spends the majority of its life in the body after birth, giving rise to a small number of mature cell types that help create the tissue in which they reside.
2. Adult stem cells perform a crucial role in tissue regeneration and damage healing. Adult stem cells have been extracted from adult tissue, umbilical cord blood, and other non-embryonic sources, and they can convert into a variety of tissues and cell types in response to pathophysiological cues.