If you are bitten by a very venomous snake or spider, what exactly happens to your body that kills you?

Question

If you are bitten by a very venomous snake or spider, what exactly happens to your body that kills you?

In: 102

Answer 1

It depends on the kind of venom, ultimately lack of oxygen to the brain most of the time if you are asking for a final cause of death.

Some cause necrosis, which may release toxic compounds into your blood stream. Some cause your blood to coagulate, leading to heart failure or oxygen deprivation. Some cause internal hemmoraging. Some cause swelling in particular organs which may toxify your blood or inhibit blood flow. Some disrupt your nervous system, and may shut down your autonomic functions.

Many exhibit some combination of those things.