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12 Cards in this Set
- Front
- Back
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What so platelets contain? |
Vesicles but no nucleus. |
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How large is a platelet? |
2-4 micrometers. |
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How many platelets are there per litre? |
150-400 x 10(9) /L |
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How do platelets work in a bleed? |
Platelets form a plug in haemostasis and release chemicals that promote vascular spasm and clotting. |
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What is the name for a low platelet level? |
Thrombocytopenia |
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What's the normal erythrocyte count? |
4.5-5.9 x 10(12)/L |
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What shape is an erythrocyte and what do these properties allow? |
Bi-concave disc Size allows capillary passage Provides a large surface area No nucleus to increase space for haemoglobin |
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What is the lifespan of a RBC? |
120 days |
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Where are RBCs produced and how are they recycled? |
Formed in the Bone Marrow Tidied/Recycled by macrophages |
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What is Anaemia? |
The lack of RBCs or Haemoglobin which leads to pallor or weariness |
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What does Microcytic mean? |
Small cell |
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What does Hypochromic mean? |
Pale-staining |
