Morphological and Histological Features of the Vomeronasal Organ in African Pygmy Hedgehog (<i>Atelerix albiventris</i>)
The vomeronasal organ (VNO) detects specific chemicals such as pheromones and kairomones. Hedgehogs (Eulipotyphla: Erinaceidae) have a well-developed accessory olfactory bulb that receives projections from the VNO, but little is known about the hedgehog VNO. Here, we studied the histological feature...
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MDPI AG
2021-05-01
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| author | Daisuke Kondoh Yusuke Tanaka Yusuke K. Kawai Takayuki Mineshige Kenichi Watanabe Yoshiyasu Kobayashi |
| author_facet | Daisuke Kondoh Yusuke Tanaka Yusuke K. Kawai Takayuki Mineshige Kenichi Watanabe Yoshiyasu Kobayashi |
| author_sort | Daisuke Kondoh |
| collection | DOAJ |
| description | The vomeronasal organ (VNO) detects specific chemicals such as pheromones and kairomones. Hedgehogs (Eulipotyphla: Erinaceidae) have a well-developed accessory olfactory bulb that receives projections from the VNO, but little is known about the hedgehog VNO. Here, we studied the histological features of the VNO in five individual African pygmy hedgehogs by hematoxylin-eosin, periodic acid-Schiff, and Alcian blue stains. The hedgehog VNO comprises a hyaline cartilage capsule, soft tissue and epithelial lumen, and it branches from the site just before the incisive duct opening into the nasal cavity. The soft tissues contain several small mucous (or mucoserous) glands and a large serous gland, and many venous sinuses all around the lumen. The VNO lumen is round to oval throughout the hedgehog VNO, and the sensory epithelium lines almost the entire rostral part and medial wall of the middle part. These findings indicate that the VNO is functional and plays an important role in the hedgehog. Notably, the VNO apparently has a characteristic flushing mechanism with serous secretions like those of gustatory glands, which the hedgehog might frequently use to recognize the external environment. |
| first_indexed | 2024-03-10T11:14:56Z |
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| id | doaj.art-27572676f62c46c3b83bfe749fe790c8 |
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| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T11:14:56Z |
| publishDate | 2021-05-01 |
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| spelling | doaj.art-27572676f62c46c3b83bfe749fe790c82023-11-21T20:28:26ZengMDPI AGAnimals2076-26152021-05-01115146210.3390/ani11051462Morphological and Histological Features of the Vomeronasal Organ in African Pygmy Hedgehog (<i>Atelerix albiventris</i>)Daisuke Kondoh0Yusuke Tanaka1Yusuke K. Kawai2Takayuki Mineshige3Kenichi Watanabe4Yoshiyasu Kobayashi5Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-11 Inada-cho, Obihiro 080-8555, JapanDepartment of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-11 Inada-cho, Obihiro 080-8555, JapanDepartment of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-11 Inada-cho, Obihiro 080-8555, JapanDepartment of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-11 Inada-cho, Obihiro 080-8555, JapanDepartment of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-11 Inada-cho, Obihiro 080-8555, JapanDepartment of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-11 Inada-cho, Obihiro 080-8555, JapanThe vomeronasal organ (VNO) detects specific chemicals such as pheromones and kairomones. Hedgehogs (Eulipotyphla: Erinaceidae) have a well-developed accessory olfactory bulb that receives projections from the VNO, but little is known about the hedgehog VNO. Here, we studied the histological features of the VNO in five individual African pygmy hedgehogs by hematoxylin-eosin, periodic acid-Schiff, and Alcian blue stains. The hedgehog VNO comprises a hyaline cartilage capsule, soft tissue and epithelial lumen, and it branches from the site just before the incisive duct opening into the nasal cavity. The soft tissues contain several small mucous (or mucoserous) glands and a large serous gland, and many venous sinuses all around the lumen. The VNO lumen is round to oval throughout the hedgehog VNO, and the sensory epithelium lines almost the entire rostral part and medial wall of the middle part. These findings indicate that the VNO is functional and plays an important role in the hedgehog. Notably, the VNO apparently has a characteristic flushing mechanism with serous secretions like those of gustatory glands, which the hedgehog might frequently use to recognize the external environment.https://www.mdpi.com/2076-2615/11/5/1462chemosensory systemexocrine glandshedgehogskairomonesolfactionpheromones |
| spellingShingle | Daisuke Kondoh Yusuke Tanaka Yusuke K. Kawai Takayuki Mineshige Kenichi Watanabe Yoshiyasu Kobayashi Morphological and Histological Features of the Vomeronasal Organ in African Pygmy Hedgehog (<i>Atelerix albiventris</i>) Animals chemosensory system exocrine glands hedgehogs kairomones olfaction pheromones |
| title | Morphological and Histological Features of the Vomeronasal Organ in African Pygmy Hedgehog (<i>Atelerix albiventris</i>) |
| title_full | Morphological and Histological Features of the Vomeronasal Organ in African Pygmy Hedgehog (<i>Atelerix albiventris</i>) |
| title_fullStr | Morphological and Histological Features of the Vomeronasal Organ in African Pygmy Hedgehog (<i>Atelerix albiventris</i>) |
| title_full_unstemmed | Morphological and Histological Features of the Vomeronasal Organ in African Pygmy Hedgehog (<i>Atelerix albiventris</i>) |
| title_short | Morphological and Histological Features of the Vomeronasal Organ in African Pygmy Hedgehog (<i>Atelerix albiventris</i>) |
| title_sort | morphological and histological features of the vomeronasal organ in african pygmy hedgehog i atelerix albiventris i |
| topic | chemosensory system exocrine glands hedgehogs kairomones olfaction pheromones |
| url | https://www.mdpi.com/2076-2615/11/5/1462 |
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