Blood lab

45% of blood

erythrocytes, leukocytes and thrombocytes

• -most common blood cell type
• -bioconcave shape
• -no nulceus
• -oxygen and carbon dioxide transport

• -involved in clotting
• -small megakaryocyte fragments

granules in their cytoplasm

• - 3-5 lobed nucleus
• - granular
• - major phagocitic WBC
• - major bacterial infection fighter
• - 1.5 the size of RBC
• - 60-70% of WBC

• -2 lobed nucleus
• -granular
• -pink-orange granules
• -twice the size of RBC
• -involved in immune function related to parasites and allergies
• -2-4% of WBC

• -S shaped nucleus
• -granular
• -dark staining granules
• -twice the size of RBC
• - 0.5-1% of WBC
• - involved in allergic reactions & radiation exposure

-their granules contain histamines (vasodilators) and heparin, an anticoagulant that allows the movement of other white blood cells out of the capillaries to infection sites.

lacking cytoplasmic granules

• - nucleus flat on one side
• - agranular
• - same to 2.5 times the size of RBC
• - 20-25% of WBC
• - involved in viral infections & antibody-antigen reactions

large kidney-shaped nucleus

agranular

2 times the size of RBC

3-8% of WBC

involved in chronic infections