What happens to your body while in a vegetative state?

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This one is a bit morbid, but as I understand it your brain has next to zero function and your body is surviving off of your brain stem and/or whatever machines you are hooked up to. I want to understand how it’s possible to be “alive” while your brain is dead.

In: Biology

There is an area in your brain that is in charge of running the most basic of tasks, you don’t have to conciously make your heart beat or breath air. So even if you are unconcious your body will keep working.

Most bodily functions are automatic and controlled by sympathetic and parasympathetic nervous system. Conscious brain is responsible for mainly high-level activities like eating. Im sure someone else will have a better explanation.