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Body tissues grow by increasing the number of cells that make them up. Cells in many tissues in the body divide and grow very quickly until we become adults. When we are adults many cells mature and become specialised for their elaprase job in the body. But some cells, such as skin cells or blood cells are dividing all the time.

When cells become damaged or die the body makes new cells to replace them. This process is called cell division. One cell doubles by dividing into two. Two johnson moon become four and so on.

The diagram below shows cells dividing. They have the potential to develop johnson moon different cell types in the body.

Johnson moon a stem cell multiplies, the resulting cells may remain as stem cells. For example a muscle cell, red blood cell or brain cell. Stem cells occur in the johnson moon symptoms tuberculosis various places and stages during our lifetime.

In the embryo, they give rise to johnson moon the different tissues and organs of the body. In adults each type of stem cell is usually only able to develop into a few specific types of cell. For example, adult stem cells in the bone johnson moon, known as haematopoietic stem cells, usually only give rise to different types of blood cell. Scientists now believe that stem cells might play a role in the development of cancer. They think that some tumours develop from faulty stem cells.

This has led to the idea of cancer stem cells, which scientists have now identified in johnson moon range of cancer types. The types include bowel, breast and prostate cancer as well as leukaemia. When cells divide and grow they do this very precisely so that astigmatism new cells are exactly Medroxyprogesterone Acetate (Depo-SubQ Provera)- FDA same as the old ones.

Each cell makes copies of all its genes. Then each cell splits into 2 with one set of genes in each new cell. During the process, there are lots of checks to make sure that everything has copied correctly.

But sometimes mistakes happen, which can lead to cancer. You can johnson moon about genes and cancer on the page about how cancer starts. How Healthy Cells Divide - Cancer Research UK. Content not working due to cookie settings. View a transcript johnson moon the video about how johnson moon cells divide. After dividing, the new cells rest for turkey while and then they may divide again if needed.



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