Blood clots are clumps that occur when Blood hardens from a liquid to solid. A Blood clot that forms inside one of your veins or arteries is called thrombus. A thrombus can also form in your heart.

This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Platelets are grouped at the site of injury and form a plug. they  release the substance which help in clotting..

hope its help  u.
1 5 1