All the sytems will fail and you will die
Depends on how you define "fails". If a body has no skeletal system, it's pretty much just a bag of jelly because everything else in the body is soft and holds no firm shape.
the skeletal system is bones. They dont fail, they break. Of course, if a leg, foot, or thigh bone breaks, you WILL fall and roll in pain. If the skull breaks, you may get a concussion.
When MBR fails then the operating system will not load.
If your digestive system fails you will suffer and possibly die from malnutrition.
The answer depends on what the system controls.
When the cooling systems fail the station over heats and blows up. For example, Chernobly 1986, Ukraine.
You die.
you will get water hammer in the system
you will die LOL by luis barrera
Eventually you die. The circulatory system is comprised of the heart and other related systems and functions in transport of nutients and oxgen around the body . If it fails then the body parts which need these substances are left without them and as these substances are vital to survival then you die shortly after.
You die. ?
All the systems work together to make you live. If one fails they will all fail