olfactory nerve

The olfactory nerve, also known as cranial nerve I, is responsible for our sense of smell. It consists of specialized sensory neurons located in the nasal cavity that detect odor molecules. When you sniff, these neurons send signals through tiny nerve fibers directly to the brain's olfactory bulb. From there, the information is processed, allowing you to perceive and identify different smells. This nerve is unique because it directly links the nose to the brain, enabling the quick and complex sense of smell vital for enjoyment, memory, and detecting dangers like fire or spoiled food.