(a) Mention any two components of blood.(b) Trace the movement of oxygenated blood in the body.(c) Write the function of valves present in between atria and ventricles.(d) Write one structural difference between the composition of artery and veins.

(a) Two components of blood are blood cells (corpuscles) and plasma.

(b) Oxygenated blood in the body move as:

Lungs -----> Left Auricle -----> Left Ventricle -----> Aorta -----> Various body parts.

(c) Valves present in between the atria and ventricles prevents the backflow of blood during the contraction of the ventricle.

(d) Structural difference between the composition of artery and vein:

Artery	Vein
The arterial wall is thick in nature.	Veins possess a thin wall.
Arteries do not possess a valve.	Veins possess a valve to prevent the backflow of blood.

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Updated on: 20-Mar-2023

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