What is blood??????
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Blood, fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide and other waste products. Technically,blood is a transport liquid pumped by the heart [or an equivalent structure] to all parts of the body, after which it is returned to the heart to repeat the process.
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★ Concept of Blood :
- → Blood makes up around 8% of your body weight (5L!)
★ Blood Consists of Following :
- → Cells and liquid
★ Blood has many part :
❍ Plasma
- → Liquid part of blood, mostly water.
❍ Red blood cells
- → Has hemoglobin, important for carrying oxygen and carbon dioxide.
❍ White blood cells
- → Fight bacteria and other foreign substances.
❍ Platelets
- → Pieces of cells that help form blood clots.
★ Blood is made up of Following :
- → Red blood cells
- → White blood cells
- → Platelets
- → Plasma
- → Breakdown products of digestion.
- → Such as glucose, fatty acid amino.
- → Dissolved mineral salts
- → Carbon dioxide
- → Urea
- → hormones
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