Advertisements
Advertisements
प्रश्न
State the differences between artery, vein and capillary.
उत्तर
Differences between artery, vein, and capillary:
| Arteries | Veins | Capillaries |
| Arteries are tough, thick, and elastic tubes. | Veins are thin-walled and non-elastic tubes. | Capillaries are very thin-walled tubes. |
| They have a narrow lumen. | They have a wide lumen. | They have a very narrow lumen, just wide enough for a red blood cell to pass through it. |
| They carry blood away from the heart to the various organs of the body, at high pressure. | They transport blood towards the heart from various organs, at low pressure. | They carry blood from the arteries to the veins. |
| They do not have valves. | They have valves to prevent the backward flow of the blood. | They do not have valves. |
| They transport only oxygenated blood (except for the pulmonary artery). | They transport only deoxygenated blood (except for the pulmonary vein). | They exchange oxygen, carbon dioxide, water, and salts between the blood and the surrounding tissues |
APPEARS IN
संबंधित प्रश्न
Answer very briefly, Red Blood cells have no nucleus, then why do we call them cells?
Define pulse.
The diagrams given below show the cross-section of two kinds of blood vessels:
(i) Identify the blood vessels A and B. In each case give a reason to support your answer.
(ii) Name the parts numbered 1 and 2.
(iii) When are the sounds “LUBB” and “DUB” produced during a heartbeat?
(iv) Name the blood vessel that
(a) begins and ends in capillaries.
(b) supplies blood to the walls of the heart.
Give scientific reason.
Arteries are thicker than veins.
Identify the pulse point ‘A’ from below given diagram.
Identify the CORRECT statement regarding pulse.
Arteries carry oxygenated blood except ______.
With the help of neat and labelled diagrams artery and vein.
Differentiate between an artery and a vein with reference to lumen and thickness of wall.
Which blood vessel take blood away from kidney?
