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प्रश्न
The chief function of lymph nodes is to
विकल्प
produce WBCs
produce hormones
destroy old RBCs
destroy pathogens
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उत्तर
destroy pathogens
संबंधित प्रश्न
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
Give reason for the following:
Only the veins and not the arteries are provided with valves.
Find out my partner.
| Group ‘A’ | Group ‘B’ |
| 1. Heart beats | a. 350 ml |
| 2. RBC | b. 7.4 |
| 3. WBC | c. 37°C |
| 4. Blood donation | d. 72 |
| 5. Normal body temperature | e. 50-60 lakh/mm3 |
| 6. pH of oxygenated blood | f. 5000-6000 per mm3 |
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 |
Name the main artery which carries blood to different parts of the body.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Leucocytes show amoeboid movement.
Use your brain power!
How is the air that we inhale purified in our body?
Identify the normal haemoglobin count in human females.
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Can you answer why the pulmonary artery shown in Fig. is blue in colour?
