blood and lymphatic

• What is blood composed of?

  Formed elements and plasma
• How is blood volume related to body weight?

  It depends on body weight
• What is the blood volume of a 154-pound individual?

  About 5 quarts/liters
• What does blood transport?

  Respiratory gases, chemicals, and cells
• What is blood plasma?

  The fluid part of blood
• What percentage of blood volume is plasma?

  55%
• What are the main components of plasma?

  Water and proteins
• Where are erythrocytes formed?

  In the red marrow inside bones
• What are erythrocytes?

  Red blood cells
• What is the role of erythrocytes?

  They carry oxygen and carbon dioxide
• What are thrombocytes?

  Platelets in the blood
• What is the function of thrombocytes?

  They play a role in blood clotting
• What is the function of leukocytes?

  Defense against pathogens
• What are leukocytes?

  White blood cells
• What is a neutrophil count?

  Identifies available white blood cells
• How many blood types are in the ABO system?

  Four blood types
• Why is the ABO blood system significant?

  It aids in successful blood transfusions
• What happens if a person receives incompatible blood?

  They may have a life-threatening reaction
• What are the antigens and antibodies in Type A blood?

  A antigens and anti-B antibodies
• What percentage of the population has Type A blood?

  41%
• From whom can people with Type A blood receive transfusions?

  Type A or Type O blood
• What are the antigens and antibodies in Type B blood?

  B antigens and anti-A antibodies
• From whom can people with Type B blood receive transfusions?

  Type B or Type O blood
• What are the antigens and antibodies in Type AB blood?

  A and B antigens, no antibodies
• From whom can people with Type AB blood receive transfusions?

  From any blood type
• What are the antigens and antibodies in Type O blood?

  No antigens, anti-A and anti-B antibodies
• From whom can people with Type O blood receive transfusions?

  Only from Type O blood
• What are universal donors?

  People with Type O blood
• What is the Rh factor?

  An inherited protein on red blood cells
• What does it mean to be Rh positive?

  Blood has the Rh protein
• What does it mean to be Rh negative?

  Blood lacks the Rh protein
• Why is the Rh factor important?

  Indicates blood compatibility for transfusions
• What is the purpose of blood typing?

  To ensure transfusion compatibility
• What is cross-matching in blood transfusions?

  Mixing donor and recipient blood samples
• What is the composition of lymph?

  95% water
• What is lymph?

  A clear, alkaline fluid between cells
• What is interstitial fluid?

  Fluid similar to blood plasma
• How does lymph move through the body?

  Via skeletal muscle action and respiration
• What is the lymphatic system connected to?

  The circulatory system
• What are lymph nodes?

  Filters that clean lymph before returning it