Dogfish head, transverse section

Dogfish head, transverse section

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Dogfish head. Light micrograph of a transverse section through the head of a lesser spotted dogfish (Scyliorhinus canicula), in the region of the auditory canals. At upper centre is the dogfish brain with y-shaped ventricles (white space). Either side are the auditory cavities (white spaces) that house the semi-circular canals responsible for maintaining balance. The mouth (buccal) cavity is at lower centre. The bubble-like areas under the skin (left and right) are the ampullae, opening to the surface, which control balance and pressure differences. Magnification: x14 when printed at 10 centimetres across.

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Keywords: air spaces, ampulla, ampullae, anatomical, anatomy, animal, auditory canal, auditory canals, balance, biological, biology, brain, buccal cavity, buoyancy, cartilage, cartilaginous, cavities, cavity, cerebellum, cranium, cross-section, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, dogfish, fauna, fish, head, ichthyology, lesser spotted dogfish, light micrograph, light microscope, lm, mandibular, marine biology, mouth, nature, organs, palato-quadrate, scyliorhinus canicula, section, sectioned, sense organ, sensory, shark, skull, transverse, ventricle, ventricles, wildlife, zoological, zoology

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