Nothing really happen intell you loose alot.
1. Shock. 2. Unconsciousness. 3. Death.
The flow of blood is reduced by pressure and you loose feeling in the limb, when blood flow is restored you get the tingly feeling of the nerves being refreshed with blood.
While it is not life threatening to loose blood, it is fatal to loose a very large amont of blood. Which after, results in what is called a "memorage"
a lot of blood
Vitamin K in the blood helps the blood to clot.
you become gay
nothing
it will loose its magnesium
fibrinogen
fibrinogen
they precipitate and loose their elasticity. then. the red blood cell cannot pass through the smaller capillaries