Download Blood

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Combat infections
Regulate body temperature
Transport nutrients, oxygen and
metabolic wastes
 Originate
in bone marrow
 Come from parent stem cells which
mature into the various types of blood
cells
 Plasma
• 55% of blood is
plasma
• 91% water, 7%
proteins, 2% other
 Water
• Maintains volume and pressure
• Transports nutrients and wastes
 Proteins
• Albium, fibrinogen, immunoglobulins
 Other
• Salts, oxygen, carbon dioxide, fats, glucose,
amino acids, nitrogenous wastes, hormones and
vitamins
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
Red Blood Cells
White Blood Cells
Platelets
 Erythrocytes
when mature lose nucleus
and become biconcave
 Haemoglobin transports oxygen, carbon
dioxide and hydrogen ions
 Antigens on red blood cells determines
blood types
 Liver
and kidneys are sensitive to low
oxygen levels
 Kidneys release REF and Liver releases
globulins when oxygen in blood is low
 Causes production of erythropoietin
 Erythropoietin stimulates stem cells in
bone marrow to increase production of
RBC’s
 Granular
Leukocytes
• Basophils
• Eosinophils
• Neutrophils
 Agranular
Leukocytes
• Lymphocytes
• Monocytes
 When
platelets are
damaged when
impacting a damaged
blood vessel it
triggers the clotting
process