Unit
Notes - 2
6. How
many days does retic spend in bone marrow and why:
2 – 3 days
because of globulins coating surface make retic sticky
7. Life span
of a circulating red blood cell is:
120 days or
about 4 months
8. What is a
“stress reticulocyte”:
Large
reticulocytes released early from bone marrow
9. Substances
necessary for the formation of RBCs:
Iron, folic
acid, vitamin B12, manganese,
cobalt, zinc, vitamins C, E, B6, thiamine, riboflavin, pantothenic
acid, erythrpoietin, thyroxine, and androgens