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In a situation where we are injured and start bleeding, the bleeding could lead to a loss of pressure that could reduce the efficiency of the pumping system. To avoid this, which cells mainly help to clot blood at the injury point?
Blood platelets
White blood corpuscles
Lymph
Red blood corpuscles
Blood platelets
Blood platelets, also known as thrombocytes, are specialized cell fragments in the blood that aggregate at the site of an injury to form a plug. This process, known as hemostasis, prevents excessive blood loss and maintains vascular integrity by forming a temporary clot.
Blood platelets, also known as thrombocytes, are specialized cell fragments in the blood that aggregate at the site of an injury to form a plug. This process, known as hemostasis, prevents excessive blood loss and maintains vascular integrity by forming a temporary clot.
Think of blood platelets as 'emergency construction workers' who rush to a burst pipe (injury) and immediately start piling up sandbags (platelets) and installing a web (fibrin) to stop the water (blood) from leaking out until the pipe can be permanently repaired.
P for Platelets, P for Plugging the leaks.
FibrinogenThrombinтАЛFibrin тАФ the conversion of soluble protein into the structural protein of a clot.
When a blood vessel is damaged, platelets adhere to the exposed collagen in the vessel wall. Upon activation, they release clotting factors and signaling molecules that trigger the conversion of soluble fibrinogen into insoluble fibrin threads. These threads form a meshwork that traps red blood cells and other components to create a stable blood clot.
Platelets are not true cells but cell fragments derived from megakaryocytes in the bone marrow.
The normal platelet count in a healthy adult is approximately 1.5 to 4.5┬аlakh cells per microliter of blood.
A deficiency in platelets is known as thrombocytopenia, which can lead to spontaneous bleeding.
Prevents rapid drop in blood pressure (hypovolemic shock).
Provides a scaffold for tissue repair and wound healing.
Used in medical diagnostic tests (CBC) to determine bleeding risk.
Essential in surgical procedures to monitor clotting capacity.
White blood corpuscles are primarily involved in the immune defense system.
Red blood corpuscles are mainly responsible for oxygen transport via hemoglobin.
Lymph is the fluid involved in immune function and transport of fats.
A is correct тАФ Blood platelets are the specialized cells (fragments) responsible for blood clotting at injury sites.
Remember that Platelets = Clotting, RBCs = Oxygen transport, and WBCs = Immunity. These are the three pillars of blood cell function often tested in competitive exams.
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