Which of the following blood components play a major role in blood coagulation ?a)Lymphocytesb)Granulocytesc)Thrombocytesd)FibrinocytesCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Platelets click this icon to hear the preceding term pronounced, or thrombocytes click this icon to hear the preceding term pronounced, are cell fragments without nuclei that work with blood clotting chemicals at the site of wounds. They do this by adhering to the walls of blood vessels, thereby plugging the rupture in the vascular wall. They also can release coagulating chemicals which cause clots to form in the blood that can plug up narrowed blood vessels. Thirteen different blood clotting factors, in addition to platelets, need to interact for clotting to occur. They do so in a cascading manner, one factor triggering another. Hemophiliacs lack the ability to produce either blood factor 8 or 9.

Platelets are not equally effective in clotting blood throughout the entire day. The body's circadian rhythm system (its internal biological clock) causes the peak of platelet activation in the morning. This is one of the main reasons that strokes and heart attacks are more common in the morning.

Recent research has shown that platelets also help fight infections by releasing proteins that kill invading bacteria and some other microorganisms. In addition, platelets stimulate the immune system. Individual platelets are about 1/3 the size of red cells. They have a lifespan of 9-10 days. Like the red and white blood cells, platelets are produced in bone marrow from stem cells.

Answer

Thrombocytes r also known as blood platelets which plays a major role in blood coagulation

Answer

Understanding Blood Coagulation
Blood coagulation is a vital process that prevents excessive bleeding when injuries occur. The primary components involved in this complex process include various blood cells, particularly thrombocytes.
What are Thrombocytes?
- Thrombocytes, also known as platelets, are small, disc-shaped cell fragments derived from megakaryocytes in the bone marrow.
- Their primary role is to initiate the clotting process, making them crucial for hemostasis (the stopping of bleeding).
Role of Thrombocytes in Coagulation
- Adhesion: Upon vessel injury, thrombocytes adhere to exposed collagen fibers in the damaged tissue.
- Activation: Once adhered, they become activated, changing shape and releasing chemical signals that attract more platelets to the site of injury.
- Aggregation: Activated platelets stick together, forming a temporary 'platelet plug' that serves as a barrier to blood loss.
Comparison with Other Blood Components
- Lymphocytes: Primarily involved in the immune response, they do not play a direct role in coagulation.
- Granulocytes: These white blood cells are mainly involved in fighting infections and are not directly involved in the clotting process.
- Fibrinocytes: This term is not commonly used in hematology; the relevant component for coagulation is fibrin, which is produced from fibrinogen by thrombin during the coagulation cascade.
Conclusion
Thrombocytes are essential for blood coagulation. Their ability to quickly respond to vascular injury and form clots is critical in preventing excessive bleeding, making them the major players in the coagulation process.

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