1) with damage to blood vessels, platelets are destroyed, from which enzymes are secreted;
2) these enzymes are combined with plasma enzymes, with calcium salts and contribute to the conversion of soluble fibrinogen protein into insoluble fibrin;
3) fibrin filaments form the basis of the resulting blood clot and blood cells clog the vessel.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.