Transcript red blood cell platelet white blood cell

KEY CONCEPT
Blood is a complex tissue that transports materials.
Blood is composed mainly of cells, cell
fragments, and plasma.
• Whole blood is made up of different
materials.
– Plasma
• 90% H2O- allows for materials to dissolve
• Concentrations- diffusion into or out of
blood
plasma
• Amino acids, glucose, salts, waste,
vitamins, hormones
– red blood cells
– white blood cells
– platelets
red blood cells,
white blood cells,
and platelets
Red Blood Cells
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Produced from stem cells in bone marrow
Lose nucleus as they mature
Transport O2 to cells; remove CO2
O2 binds to hemoglobin proteins
Dead cells filtered by liver & spleen
• White blood cells fight pathogens and destroy foreign
matter.
red blood cell
platelet
white blood cell
• Platelets help form clots that control bleeding.
platelets
fibrin
red blood cell
white
blood
cell
ABO Blood Groups
• Proteins on blood cells determine blood type
• Antigens (markers)
– proteins on cell’s surface that identify cells as foreign or natural
• Antibodies:
– proteins from WBCs to attack invaders
• Will bind to foreign blood types and cause clumps
– Float freely in plasma
Group A blood
• A antigens on the surface
of your red blood cells
and B antibodies in your
blood plasma
Group B blood
• B antigens on the surface
of your red blood cells
and A antibodies in your
blood plasma
Group AB blood
• A and B antigens on the
surface of your red blood
cells and no A or B
antibodies at all in your
blood plasma
Group O blood
• No A or B antigens on the
surface of your red blood
cells but you have both A
and B antibodies in your
blood plasma
Rh Factors
• Rh Factor is another protein
found on blood (like the A
and B antigens).
• Rh+ (A+, B+, AB+, O+)
– You have the Rh factor
protein in blood
– Can receive Rh+ or Rhblood (if you have Rh
proteins, but are given
blood without it, your
body will just make more)
• Rh- (A-, B-, AB-, O-)
– You don’t have the Rh
factor protein in blood
– Only receive Rh- blood
1) Can this work?
• Acceptor
• Donor
O-
AB-
2) Can this work?
• Acceptor
• Donor
A+
A-
3) Can this work?
• Acceptor
• Donor
AB-
B-