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प्रश्न
Explain the process of blood clotting.
उत्तर
Blood clotting is also known as blood coagulation. It is a process in which the Liquid blood changes into a semi-solid form known as a clot.
The process of blood clotting prevents the excessive loss of blood.
The process of blood clotting occurs in a series of following steps:
- The injured tissue cells and the platelets (thrombocytes) release thromboplastin.
- Thromboplastin helps in the formation of the enzyme prothrombinase in the presence of Ca2+ ions.
- Prothombinose inactivates heparin (anticoagulant) and also converts inactive prothrombin into active thrombin.
- Thrombin converts soluble fibrinogen into insoluble fibrin in the presence of Ca2+ ions.
- Fibrin forms a mesh or network in which platelets (thrombocytes) and other blood cells get trapped to form the clot.
संबंधित प्रश्न
Describe five types of leucocytes, with the help of diagrams. Add a note on their functions.
Formation of a to b is carried out in the presence of Ca++ions during clotting.
Select the CORRECT option for a and b
Which one of the following is not related to the clotting of blood?
Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?
Mark the pair of substances among the following which is essential for coagulation of blood.
A person met with a small accident and bleeds but very soon stops bleeding. Explain the physiological process responsible for this.
Which one of the following is necessary to start clotting of blood?
Mention the following:
Range of RBCs per mm3 in a normal adult human female.
Name the following:
Any two diseases related with blood clotting.
State whether the following statement is true or false and correct the false statement.
The solid fibrin and thrombin are one and the same thing.
