blood bio12
blood is made of 2 main parts
plasma(55%) cellular components (45%)
in plasma what are the 3 main parts
1. 91% h20 2. 7% blood protien(fibrinogen, globulin) 3. 2% nutrients (amino acids, sugers, lipids) hormones (insulin, erythropaietin) electrolytes (sodium, pottassium, calcium)
what are the 2 parts of cellular components?
1.buffy coat (white blood cells and platelets) 2. red blood cells
what do red blood cells do?
carry oxygen, CO2 and H+
what do white blood cells
fights microbes and foreign cells
what does a platelets (thrombocytes) do
helps blood to form clot and plugs leaky vessels
how many hemoglobin does one RBC contain?
1 million molecules of hemoglobin
whats the life span RBC
4 months
which organ controls the formation of RBC's?
kidney
what hormone is released to make RBC"s
erythropoietin
the hormone erythropoietin affects what target organ?
bone marrow
platelets are responsible for what?
blood clotting which are formed from larger cells called megakaryocytes
what mineral is needed to change prothtombin into thrombin?
CO2
what vitamin is needed for the formation of prothrombin?
vitamin k
where do we get vitamin k?
green veggies and intestinal bacteria
what protiens are needed to activate to clot blood
thromboplastin-prothrombin-thrombin-fibrinogen-fibrin