the brain cells cannot be replaced by the human body, that's why the boxer who gets brain cells damage can never be illed.
Why is it an advantage to have dead cells on the surface of the body? Why is it an advantage to have dead cells on the surface of the body?
The phagocytes, which are a type of white blood cells. spleen
Why is it an advantage to have dead cells on the surface of the body? Why is it an advantage to have dead cells on the surface of the body?
Dead cells in your body.
The consequence of damaged stem cells will depend on the amount of damage, part that has been damaged and which part of the body it supplies. Stem cells are basically the source of all tissues formed in the body. Therefore, damage to the basic unit of where the tissues form or generate will depend on how extensive the damage is and the capability of the stem cell to repair itself.
A layer of new cells is always better than a layer of old and dead cells. If your skin is dead then it wont be protecting you, instead it will spread the necrosis to your inside body parts and ultimately you'll either scar a lot or die. Nothing dead is every helpful to the body (hence why dead cells are always "recycled" and then flushed out of the body).
Skin and hair.
Yes, things that are dead still have cells. These cells begin to die after somatic death (whole body death).
If only the first layer of cells is damaged, then only the dead cells will be affected (and fall off). This acts as protection for the newer cells underneath.
It goes to your hair and nails . :)
Complex organisms use mitotic cell division to grow and to repair damage, and to replace dead or dying cells.