What part of the blood destroys dead and damaged cells?
The phagocytes, which are a type of white blood cells.
A bruise occurs from blood leaking from damaged skin tissue into the interstitial layers of the skin usually from an impact. It will be dark from the onset but will lighten to a greenish-yellow color as the body cleans these dead blood cells out of the damaged area. It will eventually clear up all the way.
Blood cells automatically die after 100-120 days for red blood cells and in a few days for white blood cells. They remain in the blood stream until they are detected by macrophages which are cells that discover and essentially eat dead cell. This process involves them surrounding the cells with a special coating that disallows them from re entering the blood stream. They are then eventually eliminated macrophages and all through the digestive system or…
Homing is the process of determining the location of something, sometimes the source of a transmission, and going to it. Macrophages are important cells of the immune system that are formed in response to an infection or accumulating damaged or dead cells. So macrophage homing is the ability of white blood cells to get to the source of an infection.
In theory it is the targeted cancerous cells. These may be in the original tumor or may have migrated away from it. But there may be some collateral damage to other more sensitive normal cells. In any case the dead or weakened cells are cleaned up by various scavenger cells in the blood and some products eliminated by organs like the liver.
The red blood cells as much smaller with a more definite disk shape. They are just the right size to fit through the smallest cappilaries. The generic white blood cells (although it actually has many different types) is much bigger and has a far more fluid structure much like an amoeba. It has the abbility to actively move rather than just be pushed around in the blood, this allows it to move in the interstitium…
Where do the dead red blood cells go for we know that it has only 3 months duration so what part of the body did it go?
Viruses stay inside the cells. They can not be attacked by the white blood cells. Bacteria are usually stay outside the cells. They are readily attacked by the white blood cells. There is fight between white blood cells and bacteria. Pus contains the dead bacteria and dead white blood cells. That is why the pus formation occurs in bacterial infection only. This is the probable answer to above question.