Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic Techniques

In this work, the fetal and newborn anatomical structures of the dolphin oropharyngeal cavities were studied. The main technique used was endoscopy, as these cavities are narrow tubular spaces and the oral cavity is difficult to photograph without moving the specimen. The endoscope was used to study...

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Main Authors: Álvaro García de los Ríos y Loshuertos, Marta Soler Laguía, Alberto Arencibia Espinosa, Francisco Martínez Gomariz, Cayetano Sánchez Collado, Alfredo López Fernández, Francisco Gil Cano, Juan Seva Alcaraz, Gregorio Ramírez Zarzosa
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Animals
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Online Access:https://www.mdpi.com/2076-2615/11/6/1507
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author Álvaro García de los Ríos y Loshuertos
Marta Soler Laguía
Alberto Arencibia Espinosa
Francisco Martínez Gomariz
Cayetano Sánchez Collado
Alfredo López Fernández
Francisco Gil Cano
Juan Seva Alcaraz
Gregorio Ramírez Zarzosa
author_facet Álvaro García de los Ríos y Loshuertos
Marta Soler Laguía
Alberto Arencibia Espinosa
Francisco Martínez Gomariz
Cayetano Sánchez Collado
Alfredo López Fernández
Francisco Gil Cano
Juan Seva Alcaraz
Gregorio Ramírez Zarzosa
author_sort Álvaro García de los Ríos y Loshuertos
collection DOAJ
description In this work, the fetal and newborn anatomical structures of the dolphin oropharyngeal cavities were studied. The main technique used was endoscopy, as these cavities are narrow tubular spaces and the oral cavity is difficult to photograph without moving the specimen. The endoscope was used to study the mucosal features of the oral and pharyngeal cavities. Two pharyngeal diverticula of the auditory tubes were discovered on either side of the choanae and larynx. These spaces begin close to the musculotubaric channel of the middle ear, are linked to the pterygopalatine recesses (pterygoid sinus) and they extend to the maxillopalatine fossa. Magnetic Resonance Imaging (MRI), osteological analysis, sectional anatomy, dissections, and histology were also used to better understand the function of the pharyngeal diverticula of the auditory tubes. These data were then compared with the horse’s pharyngeal diverticula of the auditory tubes. The histology revealed that a vascular plexus inside these diverticula could help to expel the air from this space to the nasopharynx. In the oral cavity, teeth remain inside the alveolus and covered by gums. The marginal papillae of the tongue differ in extension depending on the fetal specimen studied. The histology reveals that the incisive papilla is vestigial and contain abundant innervation. No ducts were observed inside lateral sublingual folds in the oral cavity proper and caruncles were not seen in the prefrenular space.
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spelling doaj.art-0cf767d9a98b4d1da613c04d93aa2b452023-11-21T20:57:15ZengMDPI AGAnimals2076-26152021-05-01116150710.3390/ani11061507Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic TechniquesÁlvaro García de los Ríos y Loshuertos0Marta Soler Laguía1Alberto Arencibia Espinosa2Francisco Martínez Gomariz3Cayetano Sánchez Collado4Alfredo López Fernández5Francisco Gil Cano6Juan Seva Alcaraz7Gregorio Ramírez Zarzosa8Departamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, SpainDepartamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, SpainDepartamento de Morfología, Anatomía y Embriología, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña, Arucas, 35416 Las Palmas de Gran Canaria, SpainDepartamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, SpainDepartamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, SpainDepartamento de Biología—CESAM, Campus Universitario de Santiago, Universidade de Aveiro, 3810-193 Aveiro, PortugalDepartamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, SpainDepartamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, SpainDepartamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, SpainIn this work, the fetal and newborn anatomical structures of the dolphin oropharyngeal cavities were studied. The main technique used was endoscopy, as these cavities are narrow tubular spaces and the oral cavity is difficult to photograph without moving the specimen. The endoscope was used to study the mucosal features of the oral and pharyngeal cavities. Two pharyngeal diverticula of the auditory tubes were discovered on either side of the choanae and larynx. These spaces begin close to the musculotubaric channel of the middle ear, are linked to the pterygopalatine recesses (pterygoid sinus) and they extend to the maxillopalatine fossa. Magnetic Resonance Imaging (MRI), osteological analysis, sectional anatomy, dissections, and histology were also used to better understand the function of the pharyngeal diverticula of the auditory tubes. These data were then compared with the horse’s pharyngeal diverticula of the auditory tubes. The histology revealed that a vascular plexus inside these diverticula could help to expel the air from this space to the nasopharynx. In the oral cavity, teeth remain inside the alveolus and covered by gums. The marginal papillae of the tongue differ in extension depending on the fetal specimen studied. The histology reveals that the incisive papilla is vestigial and contain abundant innervation. No ducts were observed inside lateral sublingual folds in the oral cavity proper and caruncles were not seen in the prefrenular space.https://www.mdpi.com/2076-2615/11/6/1507Striped dolphin (<i>Stenella coeruleoalba</i>)Common dolphin (<i>Delphinus delphis</i>)Pilot whale (<i>Globicephala melas</i>)Risso’s dolphin (<i>Grampus griseus</i>)Harbour porpoise (<i>Phocoena phocoena</i>)fetal development
spellingShingle Álvaro García de los Ríos y Loshuertos
Marta Soler Laguía
Alberto Arencibia Espinosa
Francisco Martínez Gomariz
Cayetano Sánchez Collado
Alfredo López Fernández
Francisco Gil Cano
Juan Seva Alcaraz
Gregorio Ramírez Zarzosa
Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic Techniques
Animals
Striped dolphin (<i>Stenella coeruleoalba</i>)
Common dolphin (<i>Delphinus delphis</i>)
Pilot whale (<i>Globicephala melas</i>)
Risso’s dolphin (<i>Grampus griseus</i>)
Harbour porpoise (<i>Phocoena phocoena</i>)
fetal development
title Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic Techniques
title_full Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic Techniques
title_fullStr Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic Techniques
title_full_unstemmed Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic Techniques
title_short Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic Techniques
title_sort endoscopic study of the oral and pharyngeal cavities in the common dolphin striped dolphin risso s dolphin harbour porpoise and pilot whale reinforced with other diagnostic and anatomic techniques
topic Striped dolphin (<i>Stenella coeruleoalba</i>)
Common dolphin (<i>Delphinus delphis</i>)
Pilot whale (<i>Globicephala melas</i>)
Risso’s dolphin (<i>Grampus griseus</i>)
Harbour porpoise (<i>Phocoena phocoena</i>)
fetal development
url https://www.mdpi.com/2076-2615/11/6/1507
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