Any idea what "spontaneous vital function" "artificially provided sustenance and hydration" "supplants"? I wonder if this bit of law will be changed due to Terri's killing, or probably better, the law regarding the decision to go ahead with the killing.
Respiration, technically. I think. The process whereby the body converts fuel for running biological processes.
Funny you point out changing the law. Just remove the words "including artificially provided sustenance and hydration" from 10, and express further that life-prolonging procedure does NOT mean including artificially provided sustenance and hydration.
The law was changed to INCLUDE artificially provided sustenance and hydration within the definition of Life-prolonging procedure, with lobbying by Felos, after Terri collapsed.