The answer is sensory nervous system. A sensory nervous system is part of a nervous system that is responsible in sensory information process. It is consist of the sensory receptors, the neural pathways and some parts of the brain involve in the sensory perception.
Because some people enjoy the bitter taste, (mostly people enjoy the taste of like black coffee) check out my music on sound cloud btw, type sydneysrequiem and you should find me :)