Why are skin cells so important?
to make a barrier from the environment? to repair other damaged/dead cells via mitosis.
Skin cells divide really quickly because our skin needs a constant renewal of cells. Our skin becomes worn-out, and the life-span of a skin cell isn't even that long, so our skin cells divide really quickly to replace the dying and or worn-out skin cells. If our skin cells didn't divide that quickly, there would be many places where we would be bleeding because our skin cells couldn't divide fast enough to keep the blood…
Of course. When discussing skin cells it is important to understand all layers of the skin. The layers of the skin start out cuboidal (square); as new cells are created, old cells are forced upward. In a sense they are flattened. For instance, visualize stand on a layer of cushions. The bottom cushion will be more flat than the rest. Hence the top layer of the skin is squamous (flat).
Skin is made up of stratified epithelial cells. these cells act as protection. There are many layers of epithelial cells that are effectively dead. you shed your skin as a new layer is developed underneath which maintains a fresh layer of dead cells lining your skin. the skin cells do not allow anything to pass through them so prevent unwanted substances from moving into your body
The living cells in the epidermis are located beneath the dead cells. Hope this helps! Yes but your skin shreds everyday so you may have layers of dead skin forming on the surface of your skin. We shred quite a lot of skin cells everyday but if you're talking about actual layers of skin in which blood runs through then yes, those cells are indeed alive . :)