- Mention any two components of blood.
- Trace the movement of oxygenated blood in the body.
- Write the function of valves present in between atria and ventricles.
- Write one structural difference between the composition of artery and veins.
1.Two components of blood are
- Blood plasma
- Blood cells.
2.Movement of oxygenated blood in the body as follows:
Pulmonary veins → Left atrium → Left ventricle → Syslemicaorta → All part of the blood
3.The valves in the heart are to prevent the backflow of blood when the atria or ventricles contract.
4.Ateries Eire thick walled whereas veins are thin walled.