Blood Clotting

Question 1

Major damage/ cut

Answer 1

1) smooth edges become rough
2) platelets and clotting factors stick to rough edges
3) fibrin fibres form mesh work over cut, plasma, clotting factors and platelets
4) clot retraction- threads contract pulling edges of mesh work together
5) serum released, drying scab and preventing infection of micro organism

Question 2

Small damage/ cut

Answer 2

1) smooth walls become rough
2) platelets stick to rough edges
3) plug formed