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प्रश्न
Explain Diapedesis.
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उत्तर
Diapedesis – Leucocytes, especially monocytes, migrate through the walls of the blood vessels. This process is called diapedesis. Leucocytes migrate to fight germs.
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संबंधित प्रश्न
Name the following:
The fluid found between the membranes of the heart.
Give reason for the following:
Atrial wall is less muscular than the ventricular wall.
Multiple choice questions. Tick ( ✓ ) the correct choice:
The four blood groups in humans are
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| 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 |
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State the Location:
Tonsils
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Can you answer why the pulmonary artery shown in Fig. is blue in colour?

