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Body Fluids and Circulation — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBody Fluids and Circulation5 Marks
Question
Differentiate between arteries and veins.
✓

Answer

S. No
Arteries
Veins
(a)
Arteries carry blood from the heart to different parts of the body.
Veins bring blood from different parts of the body to the heart.
(b)
Arteries have thick walls to withstand the pressure of the blood.
Veins are thin walled and blood flows with very little pressure.
(c)
They do not have valves.
They possess valves to prevent back flow of blood.
(d)
Blood flow in arteries is due to pumping action of heart.
Blood flows due to contraction of muscles.

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