ANATOMY

Detailed explanation-1: -Your sense of smell-like your sense of taste-is part of your chemosensory system, or the chemical senses. Your ability to smell comes from specialized sensory cells, called olfactory sensory neurons, which are found in a small patch of tissue high inside the nose. These cells connect directly to the brain.

Detailed explanation-2: -The sense of smell gives organisms information about the changing chemistry of their environment and thus can alert them to either danger or opportunity. Smell is also used in navigation by animals. The olfactory route is the most direct and therefore fastest of our senses.