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प्रश्न
The cells in our blood which destroy disease-causing germs are:
पर्याय
Platelets
Skin cells
RBCs
WBCs
उत्तर
WBCs
White blood cells or WBCs destroy the disease-causing germs. They are like soldiers that protect the body from various infections.
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संबंधित प्रश्न
Explain Pulse
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
A blood vessel which has small lumen and thick wall is ______.
What does the term “double circulation” mean?
Explain the difference.
Arteries and veins.
Find the odd one out.
In which organ of our body does blood get oxygenated?
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 |
Given below is the simplified pathway of the circulatory system:
(i) Name the blood vessels marked 1 to 8.
(ii) Name the chamber of the heart which:
(a) Receives blood from ‘1’.
(b) Pumps blood into blood vessel ‘8’.
(iii) Mention two structural differences between blood vessels ‘7’ and ‘2’.
______ WBCs are present per mm3 of blood.
