SHOCKING, what happens when a snake's venom gets in contact with the blood

This is just one of the most terrifying clips I've ever seen. I would never have thought what effect a drop of venom might have on the blood. In this clip, we see step by step collecting venom from a venomous snake and then introducing a potion of venom into a blood vessel. The incredible effect that venom has on blood has left me without words. With a single drop of venom, the protagonist of the video closed the blood from the bowl. From a liquid the blood has been transformed into a solid composition
within a few seconds, being cut and shown as a piece of meat.