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Life Processes — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLife Processes5 Marks
Question
Differentiate between an artery and a vein.
✓

Answer

 
Artery
Vein
1.
Direction of Flow: It carries blood from heart to an organ.
It brings blood from an organ towards the heart.
2.
Speed: Blood flow is rapid in artery.
Blood flow is slow in vein.
3.
Jerks: Blood flows with jerks.
Blood flows smoothly.
4.
Pressure: Blood flows under pressure.
There is little pressure.
5.
Internal Valves: They are absent.
Internal valves are present to prevent back flow.
6.
Wall: It is thick and elastic.
It is comparatively thinner and little elastic.
7.
Lumen: Narrow.
Wide.
8.
Type of Blood: Artery carries oxygenated blood except pulmonary arteries.
Vein carries deoxygenated blood except pulmonary veins.
9.
Occurrence: It is deep seated.
It is superficial.
10.
Collapsibility: Artery is not collapsible.
Vein is collapsible.
11.
Blood After Death: It does not contain blood after death.
Vein is full of blood even after death.

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