What are the main organs of blood-circulation system?
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The major organs in circulatory system is Heart Accessory organ is lungs Accessory tissue are Blood and blood vessel
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"The main organs of blood-circulation system are:
1. Heart plumps the blood.
2. Veins brings the blood to the heart.
3. Arteries brings the blood from the heart to the body.
4. Blood vessels: They allows the oxygen to leave the blood and enter the cells that need it.
5. Blood contains important nutrients gasses and liquid.
"
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