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प्रश्न
Name the Following
The enzyme which converts fibrinogen to fibrin.
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उत्तर
Thrombokinase
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संबंधित प्रश्न
Explain Pulse
Given below is a diagram of a human blood smear.
Study the diagram and answer the questions that follow:
a) Name the components numbered ‘1’ to ‘4’
b) Mention two structural differences between the parts ‘1’ and ‘2’.
c) Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.
d) What is the average lifespan of the component numbered ‘1’ ?
e) Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain
What is Diapedesis?
When are the sounds "LUBB" and "DUP" produced respectively during heart beat?
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 |
| (b) | Defective haemoglobin in RBC | (ii) | Serum |
| (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 |
What is diastole?
Explain the following:
Why is the closed circulatory system more efficient than the open system?
Respiration takes place because of its up and down movement.
A resting person usually has a pulse rate between 72 to 80 beats per minute.
Hematocrit is ______.
