This card explains that all blood cells originate from bone marrow stem cells and notes the lifespan of red blood cells and neutrophils, highlighting the constant need for their replacement.
Tato karta popisuje původ všech krevních buněk z kmenových buněk kostní dřeně a uvádí životnost červených krvinek a neutrofilů, což ukazuje na neustálou potřebu jejich nahrazování.
| Front | Blood cells stem cells 2.1.6(k) |
|---|---|
| Back | All blood cells derived from bone marrow stem cells, - erythrocytes lifespan of 120 days so constantly replaced by these stem cell colonies - neutrophils lifespan of 6 hours so same replacing, more replacing if infection present |
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