Fine Structure of the Vomeronasal Organ in the House Musk Shrew : Suncus murinus

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We observed fine structures in the vomeronasal organ of the house musk shrew using optical and electron microscopes. The vomeronasal organ of this animal had a pair of openings behind the incisors, and was composed of a pair of blind tubes extending from these. The vomeronasal epithelium was situated on the medial and basal parts in the vomeronasal organ. The medial vomeronasal epithelium was thin and had few basal cells. The basal vomeronasal epithelium was thick and had long sensory cells and numerous basal cells. The distal ends of the vomeronasal sensory cells protruded somewhat into the lumen and had many long microvilli. Further, there were plenty of mitochondria in the cytoplasm. There were only a few secretory granules and mitochondria in the supporting cells. Most of the vomeronasal organ was surrounded by a hard bone capsule, but there was a small window on the postero-dorsal hard bone capsule. On the lateral side, there was a thick sinus along the vomeronasal cavity.
社団法人日本動物学会の論文
1993-10-15