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प्रश्न
What is the function of spleen?
Write important role/roles of the following:
Spleen
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उत्तर
- The spleen is a large lymphatic organ.
- The spleen acts as a blood reservoir in case of
emergency such as haemorrhage, stress, or poisoning. - It produces lymphocytes.
- It destroys worn-out red blood cells (RBCs).
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संबंधित प्रश्न
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The complex consisting of a DNA strand and a core of histones
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Match the items in Column ‘A’ with those in column ‘B’ Rewrite the correct matching pairs.
| Column A | Column B | ||
| (a) | SA Node | (i) | Plasma |
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| (c) | Muscle fibres located in heart | (iii) | Pacemaker |
| (d) | The liquid squeezed out of blood during clotting | (iv) | Sickle cell anaemia |
| (e) | Never tires, keep on contracting and relaxing | (v) | Purkinje fibres |
| (f) | Cardiac cycle | (vi) | Cardiac muscle |
| (g) | Liquid part of the blood without corpuscles | (vii) | 0·85 sec |
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True or false:
Blood group A has antigen A.
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 |
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Complete the following sentence with appropriate word:
The membranous covering of the heart is _______.
_____ gas is transported to all parts of the body.
