They are made abundantly every day to replace all of them in 3-4 months. The ones that replicate even faster are the white blood cells.
We can not extract DNA from RBCs as they are without nucleus. only the source of DNA extraction is Leukocytes, RBCs are not good source of extraction but we can extract DNA from immature RBCs.
no capillaries connect the arteries to the vain bone marrow makes rbcs
Red blood cells are by far the most abundant cells in the blood. There are an average of 2,830,000 RBCs per cubic millimeter (microliter). RBCs account for approximately 40 to 45 percent of the blood. This percentage of blood made up of RBCs is a frequently measured number and is called the hematocrit. The ratio of cells in normal blood is 600 RBCs for each white blood cell and 40 platelets.
low rbcs count shows anaemia high rbcs count show polycythemia vera. rbcs enumerations shows the bonemarrow how much active.
low rbcs count shows anaemia high rbcs count show polycythemia vera. rbcs enumerations shows the bonemarrow how much active.
Red blood cells are by far the most abundant cells in the blood. There are an average of 2,830,000 RBCs per cubic millimeter (microliter). RBCs account for approximately 40 to 45 percent of the blood. This percentage of blood made up of RBCs is a frequently measured number and is called the hematocrit. The ratio of cells in normal blood is 600 RBCs for each white blood cell and 40 platelets.
Hematocrit measures the volumeof packed RBCs as a percentage of blood volume.
45%
Appendix
Anaemia, kidney dysfunction, bleeding-excessive, vitamine B12 deficiency
Blood is made up of about 45% solids, platelets, RBCs and WBCs, and 55% of plasma.
Yes, it is lympahtci tissue but is recycles RBCs and stores many RBCs in case of a massive blood loss.