Question

explain components of blood, structure of heart and circulation of blood​

Answer 1

Answer:

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components of blood are :

1. plasma : blood is composed of a fluid, called Plasma in which different types of cell are suspended.

2. Red blood cells : a type of cells are the red blood cells (RBC) which contain a red pigment called haemoglobin by which it looks red.

3. white blood cells : the blood also has white blood cells (WBC) which fight against germs that may enter our body.

4. platelets : Because of the presence of another type of cells cloting is done on bleeding called platelets.

human heart

the heart is located in the chest cavity with its lower tip slightly tilted towards the left. the heart has four Chambers. The Two upper chambers are called the Atria ( singular : atrium) and the two lower chambers are called the ventricles. the partition between the Chambers helps to avoid mixing up of blood rich in oxygen with the blood rich in carbon dioxide.

circulation

to understand the functioning of the circulatory system, start from the right side of the heart and follow the arrows. these arrows show the direction of the blood flow from the heart to the lungs and back to the heart from where it is pumped to the rest of the body.

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