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Question
Give reason for the following:
Only the veins and not the arteries are provided with valves.
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Solution
Veins carry the blood from the body part towards the heart while the arteries carry the blood
from the heart. Veins carry the blood against the force of gravity. Therefore, only the veins
and not the arteries are provided with valves.
RELATED QUESTIONS
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
Name the following:
The blood vessels which start from capillaries and end in capillaries.
Differentiate between members of the following pairs with reference to the aspect asked within bracket:
artery and vein (type of blood primarily flowing through)
Fill in the blanks with suitable words given below:
The oxygen-rich blood is pumped into different parts of the body through ______.
Fill in the blanks with suitable words given below:
The carbon dioxide loaded blood from right ventricle is pumped into the lungs through ______.
Match the statements in Column A with those in Column B
| Column A | Column B | ||
| 1 | Heart | a | Movement of materials |
| 2 | Food and oxygen | b | Channels for transport in man |
| 3 | Carrier of oxygen | c | A living pump |
| 4 | Circulation | d | Materials needed by every living being |
| 5 | Arteries and veins | e | Red blood cells |
State the Location: Bicuspid value
Short answer question.
Write a note on blood plasma.
In a closed circulatory system, blood is completely enclosed within:
Ventricles have ______ walls when compared with those of auricles.
