NCI Dictionary of Cancer Terms
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olfactory bulb (ol-FAK-tuh-ree bulb)
|A rounded mass of tissue that contains several types of nerve cells that are involved in the sense of smell. There are two olfactory bulbs on the bottom side of the brain, one above each nasal cavity. The olfactory bulbs receive information about smells from the nose and send it to the brain by way of the olfactory tracts.|