CNRI / SCIENCE PHOTO LIBRARY Y CNRI / SCIENCE PHOTO LIBRARY Y
Skull ear cavity. Anatomical dissection of the left-hand side of the skull, showing the ear cavity, the mastoid process (centre), nerves (white), and the semicircular canals (black). The semicircular canals are fluid-filled structures in the inner ear that help detect head movements and provide a sense of balance.
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