Circulatory system 2 & 3

primary cells from which the others are derived

negative feedback loop

when rbc count drops hypoxia to kidneys stimulates kidneys to produce

begins from same plurpotent stem cells as erythroctes
originals cells can differenitate into specific tpyes colonly forming units

become neutrophils basophils ensinophils

become monocytes

become one of three thyes of of lymphocytes

produced in response to infectious nad other immune challenges

small fragments of marrow cells

two types of antigens

a antigens

b antigen

a & b antigens

neither a or b

if you have an Rh antigen you considered to be