The Circulatory System - The blood
- Created by: alexda
- Created on: 13-05-14 17:15
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- The Circulatory System - The Blood
- 1. Red blood cells carry oxygen from the lungs to all the cells in the body.
- They are biconcave which means they have a large surface area for the absorption of oxygen.
- Red blood cells do not have a nucleus, which allows more space for haemoglobin.
- A lack of iron in our diet, can causes anaemia. A condition where the blood can not carry enough oxygen needed for all the respiration demands of the cells.
- 2. White blood cells are located in the immune system of the body, as they defend against disease.
- White blood cells can change shape to consume or engulf harmful microbes.
- 3. Platelets are small fragments of cell that help to clot the blood at a wound.
- 4. Plasma is the pale yellow liquid that transports substances in the blood for example:
- Red and white blood cells and platelets.
- Waste products
- 1. Red blood cells carry oxygen from the lungs to all the cells in the body.
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