Question

Think up..
1. What is the main function of heart?
2. What is the role of capillaries ?
3. What are the constituents of blood ?
4. Define heart beat.
5. What is the sequence of blood flow in our body?​

Answer 1

Answer:

1) its main function is to supply oxygen and main nutrients to the tissues and removing carbon dioxide and other wastes.

2) they are the sites of transfer of oxygen

and other nutrients from the blood steam

Answer 2

Answer:

1. main function of heart is to pump blood

2. capillaries helps in transfer of blood and oxygen

3. RBC WBC and plasma

4. pulse of the heart is called heart beat

5. Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poorblood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.