Blood clotting Flashcards
1
Q
what are the 3 steps in order for blood clotting
A
vasoconstriction, platelet plug, coagulation
2
Q
what happens in the 1st stage of blood clotting - vasoconstriction
A
blood vessels constrict reducing blood flow to an area
3
Q
what happens in the 2nd stage of blood clotting - platelet plug
A
platelets attach to the damaged wall and join to form a plug
4
Q
what happens in the 3rd stage of blood clotting -
A
chemicles from the platelets form a protein called fibrin which causes threads to trap everything until it clots and dries over
