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Middle ear, 3D CT and MRI scans
Coloured 3D composite computed tomography (CT) and magnetic resonance imaging (MRI) scans of a view along the right auditory canal to the middle ear. The eardrum has been digitally removed. The front of the body is at right. The two pointed structures at upper centre are two of the bones of the middle ear, the malleus (centre) and the incus (left). The incus is attached to the third bone, the stapes (oval). These bones mechanically transmit sounds from the eardrum (not seen) to the fluid-filled organs of the inner ear. The two thread-like structures across upper right are the chorda tympani nerve (thinner) and the facial nerve (thicker)., by K H FUNG/SCIENCE PHOTO LIBRARY
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