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   ocr: N HUMANS and other animals, the tongue is the organ that detects taste, and the nose is the organ that detects smell. Both the tongue and the nose send nerve impulses to the brain when they are stimulated. Taste and smell are closely related. They are called the chemical senses because they sense the chemicals in food and in the air. Toan extent, taste depends on smell -itis difficult to taste anything with a stuffy nose. The tongue has taste buds that can identify four tastes: sweet, salt, sour, and bitter. The flavors we taste depend on the combination oftaste buds that are stimulated and th ...