Blood Cells

• Bone marrow generates all blood cells
• Low RBC = anaemia - hypoxia esp. heart + brain
• Low platelets = thrombocytopaenia - bleeding (impaired haemostasis)
• Low myeloid cells = neutropaenia - immune deficiency
• All cell lines reduced = pancytopaenia
• Total White cell count 7 +/- 3x10^9/L
• Most common white cell = neutrophil
• Myeloblast --> promyelocyte --> myelocyte --> metamyelocyte --> band --> neutrophils