If you're a human, you have about 400 different kinds of receptors, and the brain knows what you're smelling because of the combination of receptors and nerve cells that they trigger, sending messages up to the brain in a combinatorial fashion.
Ako ste čovjek, imate oko 400 različitih vrsta receptora, a mozak zna što njušite zbog kombinacije receptora i živčanih stanica koje podražuju šaljući u mozak kombinatorične signale.