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प्रश्न
Distinguish between Intrinsic and extrinsic process of clotting
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उत्तर
| Intrinsic pathway | Extrinsic pathway |
| 1. It is stimulated by damage to blood vessels. | 1. It is stimulated by damage to tissue outside the vessel. |
| 2. It is more complex and takes more time than the extrinsic pathway. | 2. It occurs rapidly as it has fewer steps as compared to the intrinsic pathway. |
| 3. Tissue factor is not involved in the activation of the intrinsic pathway. | 3. Tissue factor also known as thromboplastin activates extrinsic pathways. |
| 4. It involves factor VIII, IX, XI, and XII. | 4. It involves factors VII, X, and V. |
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संबंधित प्रश्न
The diagram given below represents a section of the human heart. Answer the questions that follow :
(i) Which parts of heart are in the diastolic phase? Give a reason to support your answer.
(ii) Label the parts numbered 1 and 2 in the diagram. What type of blood flows through them?
(iii) What causes the heart sounds ‘LUBB’ and ‘DUP’?
(iv) Name the blood vessels that supply oxygenated blood to the heart muscles.
(v) Draw neat labelled diagrams of a cross section of an artery and a vein.
Which organ acts as a pump in the circulatory system?
With which human organ system (or human systems) is vena cava associated?
State the functions of blood in our body.
True or false:
The four blood groups in human beings are A, B, AB and AO
Write a short note on the human heart.
Name the Following
The enzyme which converts fibrinogen to fibrin.
Thin tube-like structures which are the component of circulatory system are called blood vessels.
Assertion (A): RBCs help in the transport of respiratory gases.
Reason (R): The cytoplasm of RBCs contains the respiratory pigment Haemoglobin.
What are the normal values of blood pressure in a normal human adult?
