MICROSCAPE / SCIENCE PHOTO LIBRARY MICROSCAPE / SCIENCE PHOTO LIBRARY
Section of the middle nasal septum with a core of cartilage (blue) covered with a specialized epithelium concerned with olfaction, i.e. the sense of smell. The surfaces show a tall stratified epithelium beneath which are many blood vessels (pink-red), branches of the olfactory nerves (cranial nerve I, solid pink cellular structures) and the ducts of Bowman's serous (watery) glands. These ducts and the nerves extend into the epithelium; the nerves end as sensory receptors for odorant molecules. Magnification x50 when printed 10cm wide.
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