Blood%20compatibility

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Blood compatibility
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Blood types

• A blood type (also called a blood group) is a
  classification of blood based on the presence or
  absence of inherited antigenic substances on the
  surface of red blood cells

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Blood types

• There are four major blood types A, B,
• AB,
• and O

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Antigens

• There are two antigens, A and B. If you have the
  A antigen on the RBC, then you have type A blood.
  
• When B antigen is present, you have type B blood.

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Antigens

• When both A and B antigens are present, you have
  type AB blood.
• When neither are present, you have type O blood.

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Rh blood group

• In addition to the ABO blood group system, there
  is an Rh blood group system
• The D antigen is the most common Rh antigen. If
  the D antigen is present, then that blood is Rh.
  If the D antigen is missing, then the blood is
  Rh-.

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Blood compatibility

• Not all blood types are compatible
• There are universal donors and universal
  recipients

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• In terms of RBC
• O- (universal donor blood)
• AB (universal recipient)
• In terms of plasma
• Plasma extracted from type AB blood can be
• transfused to individuals of any blood group,
• but type O plasma can be used only by type
• O recipients

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Blood compatibility chart
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The Circulatory System

• Moves nutrients, gases, and wastes to and from
  cells
• Helps fight diseases
• Stabilizes body temperature and pH
• Humans have a closed system (blood never leaves
  the network of arteries, veins, and capillaries

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The Circulatory System

• The circulatory system consists of
• The heart
• Blood vessels
• Blood

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The Circulatory System

• Includes pulmonary circulation- oxygen depleted
  blood carried away from heart to lungs and
  returns oxygenated blood to heart
• Systemic circulation- carries oxygenated blood
  away from heart to rest of body and returns
  deoxygenated blood

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The Arteries, Veins, and Heart

• Arteries take blood away from the heart
• Veins bring blood back to the heart
• The heart has four chambers- left atrium, left
  ventricle, right atrium, right ventricle