summary of formed elements of blood

1

eryhtrocytes (RBC)

erythrocytes

4800-10,800 transport oxygen and carbon dioxide 4-6 million

2

Neutrophil

Neutrophil

3000-7000 Phagocytize pathogens

3

Eosinophil

Eosinophil

100-400 kills parasitic worms and has a role in managing asthma and allergies

4

Basophil

Basophil

20-50 Releases histamine and other mediators of inflammations

5

Lymphocyte

Lymphocytes

1500-3000 Support immune response by direct cell attack or antibody production

6

Monocytes

Monocyte

100-700 In tissues, developes into macrophages that phagocytize pathogens or debris

Platelets

150,000-400,000 seal small tears in blood vessels