put mallet up it
Because if you didn't, you would be pouring out blood, and would eventually die. And there are things in your body that stop blood flow, and that's one of them.
I think you're thinking of vit K. It does not stop blood flow, but a lack of it will prevent clotting.
it makes the blood into clots
platelets
To open and close to allow the flow of blood and to stop the flow of blood.
The word must be "halt." The meaning of the word, 'Staunch' when used as a verb, is "to stop the flow of something, particularly blood".
Platelets.
Coagulation or clotting means to stop blood flow.
hemostasis
if the heart stops
the stop of blood flow to the heart
no