3. Olfactory Receptors

Thanks to Nobel-winning research conducted by Linda Buck and Richard Axel, we now understand much more about olfactory receptors neurons. There are millions of olfactory neurons in the epithelium that help the brain classify odors. Certain receptors are designed to identify certain odor molecules. Furthermore, due to their shape, odor molecules can fit into more than one receptor at a time, enabling the nose to potentially identify billions of scents.

receptors olfactory system

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