Stem Cell Use and Research Essay

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a. Stem cells are a very unique and useful medical advancement. The basic idea of a stem cell is: A cell that is able to differentiate into a specialized cell type. These are different from other cells, because each organ and body system has unique cells for their functions (Like how blood has red and white blood cells, while muscles have cardiac, smooth, and skeletal muscle cells). Stem cell aren’t specialized for any function or organ yet, but are able to differentiate into a unique cell type when needed.

b. Furthermore, stem cells come from two main sources: Embryo, and Adult tissues. Adult stem cells are found in the body after embryonic development. they lie dormant or unable to divide until activated by an injury or disease. They also can divide indefinitely making them able to generate a wide range of cell types from the original organ or even generate the original organ itself. The type of cells adult stem cells can differentiate into, might be limited based on their original tissue but there is evidence stating otherwise. As opposed to, embryonic stem cells that are found in four or five day old human embryos. Lacking the stimulation to differentiate they can just grow and divide rapidly into more stem cells that are able to become any type of cell in the body. Eventually you can stimulate them to become a specialized cell type.

b. Notably, embryonic stem cells are harvested in a strange way. Scientist wait until the blastocyst stage - the stage where a zygote…

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