Question

State the difference between blood vessels artery, vein, and capillary.

Answer 1

Hint: The connexion between the vessels that carry blood away from the heart (arteries) and the vessels that return blood to the heart (veins) is formed by capillaries, the smallest and most numerous blood vessels. The primary purpose of capillaries is to exchange materials between the cells of the blood and tissue.

Complete answer:

Artery	Vein	Capillary
(I) It is a blood vessel with a wall that is thick.	(I) It is a blood vessel having a thin wall.	(I) It is a very narrow vessel of blood with very thin walls.
(ii) It brings blood to various parts of the body from the heart.	(ii) It carries blood into the heart from various sections.	(ii) It forms a network throughout the body that links arteries to veins in all living cells.
(iii) It may be extended or constricted at the regulatory request of the body.	(iii) In normal conditions, it cannot be dilated or constricted.	(iii) It can be dilated or constricted according to tissue requirements.
(iv) There's no valve in it.	(iv) It contains valves that allow the blood to flow to the heart in one direction.	(iv) There's no valve in it.
(v) Except for the pulmonary artery, all arteries contain oxygenated blood.	(v) All veins bear deoxygenated blood except the pulmonary vein.	(V) It contains mixed blood as it links the veins and arteries

Note: The channels or conduits through which blood is distributed to body tissues are blood vessels. Two closed tube systems that begin and end at the heart make up the vessels. One system, the pulmonary vessels, transports blood from the right ventricle to the lungs and back to the left atrium.