white blood cells are nucleated cells.
white blood cells are nucleated cells.
what type of cells are white blood cells?
nucleated
while the irradiation, or process of being exposed to radiation, has resulted in bone marrow destruction and death of many rapidly multiplying cells, the surface effects do not become apparent until later. for example, irradiation kills the rapidly dividing cells of the gastrointestinal tract; however, diarrhea is not apparent until the cells begin to slough off, coming out in bloody excrement. loss of this protective lining exposes the body to bacteria within the gut causing sepsis. also, this causes an inability to absorb nutrition from food. this is the same with the rapidly proliferating cells of the immune system. irradiation essentially halts white blood cell production by destroying bone marrow, however the remaining white blood cells within the body are still temporarily working until they are "used up". anemia develops more slowly, because preexisting red blood cells have a longer life span than white blood cells and platelets.
signs and symptoms of radiation poisoning
the cancellous part of bones contain bone marrow. bone marrow produces blood cells in a process called hematopoiesis. blood cells that are created in bone marrow include red blood cells, platelets and white blood cells. progenitor cells such as the hematopoietic stem cell divide in a process called mitosis to produce precursor cells. these include precursors which eventually give rise to white blood cells, and erythroblasts which give rise to red blood cells. unlike red and white blood cells, created by mitosis, platelets are shed from very large cells called megakaryocytes. this process of progressive differentiation occurs within the bone marrow. after the cells are matured, they enter the circulation. every day, over 2.5 billion red blood cells and platelets, and 50–100 billion granulocytes are produced in this way.
bone