write the steps of blood clot formation.
Answers
Explanation:
Injury. A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.
Injury. A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.Vessel constriction. To control blood loss the blood vessel narrows (called constriction), thus limiting blood flow through the vessel.
Injury. A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.Vessel constriction. To control blood loss the blood vessel narrows (called constriction), thus limiting blood flow through the vessel.Platelet plug. ...
Injury. A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.Vessel constriction. To control blood loss the blood vessel narrows (called constriction), thus limiting blood flow through the vessel.Platelet plug. ...Fibrin clot.
Answer:
Blood clotting normally occurs when there is damage to a blood vessel. Platelets immediately begin to adhere to the cut edges of the vessel and release chemicals to attract even more platelets. A platelet plug is formed, and the external bleeding stops
1 )Injury
A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.
2)Vessel constriction
To control blood loss the blood vessel narrows (called constriction), thus limiting blood flow through the vessel.
3)Platelet plug
In response to the injury, tiny cells in the blood called platelets are activated. The platelets stick to one another and to the wound site to form a plug. The protein von Willebrand factor (VWF) helps the platelets stick to each other and to the blood vessel wall.
4)Fibrin clot
Next, clotting factor proteins trigger production of fibrin, a strong, strand-like substance that forms a fibrin clot, a mesh-like net that keeps the plug firm and stable. Over the next several days to weeks, the clot strengthens and then dissolves as the wounded blood vessel wall heals.
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