ROGER HARRIS / SCIENCE PHOTO LIBRARY ROGER HARRIS / SCIENCE PHOTO LIBRARY
Olfactory nerves in the brain. Computer artwork of a person's head showing the left hemisphere of the brain inside. The highlighted area shows the olfactory nerves where they reach the brain. The olfactory nerves are the first cranial nerves and carry scent information from the nose to the brain. They are a collection of nerve rootlets which extend from the olfactory bulb in the brain to the olfactory epithelium, the area of the nose which intercepts scents. There are two olfactory nerves, one on each side of the face.
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