Skeletal muscle is most often controlled by conscious thought.
The comparative form of "conscious" is "more conscious," and the superlative form is "most conscious."
There are quite a few liquids that are susceptible to bacterial growth. Water and sugary warm liquids are the most susceptible.
Papua, New Guinea is most susceptible to tsunami hazards.
The floating ribs and the false ribs are the most susceptible to injury.
infants
STP
SNMP
lol
If by vital you mean most reactive, then the metal francium, Fr, is the most reactive element.
The most vital of all files, is the WINDOWS, or WINNT folder. this contains your OS.
Most of the vital systems in our body are controlled in the brainstem.