The ability to smell is a complex process involving the nose and brain. It begins with odor molecules in the air passing through your nostrils and to a strip of tissue inside the nose called the olfactory epithelium. This tissue is home to millions of cells called olfactory sensory neurons, which are like taste buds of the nose. Each of these neurons has receptors that bind the odor molecules floating around. When detection happens, the neurons send an electrical signal to the brain, where it is processed into a scent that we’re able to recognize.
Unlocking the Secrets of Our Olfactory Senses
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