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Comparative anatomy of the nasal cavity in the common dolphin Delphinus delphis L., striped dolphin Stenella coeruleoalba M. and pilot whale Globicephala melas T.: a developmental study

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animals-11-00441-v2 (2).pdf(15.1 MB)
Date
2021-02-08
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Authors
Ríos y Loshuertos, Alvaro García de los ; Soler Laguía, Marta ; Arencibia Espinosa, Alberto ; López Fernández, Alfredo ; Covelo Figueiredo, Pablo ; Martínez Gomariz, Francisco ; Sánchez Collado, Cayetano ; García Carrillo, Nuria ; Ramírez Zarzosa, Gregorio José
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Facultad de Veterinaria
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Publisher
MDPI
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Anatomía y Anatomía Patológica Comparada
DOI
https://doi.org/10.3390/ani11020441
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info:eu-repo/semantics/article
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Abstract
Our goal was to analyze the main anatomical structures of the dolphin external nose and nasal cavity from fetal developmental stages to adult. Endoscopy was used to study the common development of the external nose and the melon, and nasal mucosa. Magnetic resonance imaging (MRI) and anatomical sections were correlated with anatomical sections. Computed tomography (CT) was used to generate 3D reconstructions of the nasal bones and nasal cavities to study its development. Dissections, histological and pathological studies were carried out on the nasal mucosa to understand its function. These results were compared with the horse. Endoscopy showed an external nose with two lips and the upper lip is divided by a groove due to the nasal septum and an obstruction of right nasal cavity was diagnosed in a newborn. Two diverticula (air sacs) were found in the nasal vestibule and an incisive recess (premaxillary sac) in the nasal cavity. These findings were corroborated by 3D reconstructions of the nasal cavities, MRI, anatomical sections and dissections. The presphenoid and ethmoid bones were fused at early stages of fetal development. The ethmoid is the last bone to ossify in the nasal cavity.
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Common dolphin (Delphinus delphis) , Pilot whale (Globocephala melas) , Fetal development , Nose , Nasal cavity , Endoscopy , PET/SPECT/CT , MRI , Sectional anatomy , Dissection , 3D reconstruction , Histology , Ontogeny , Striped dolphin (Stenella coeruleoalba)
Citation
Animals 2021, 11, 441
URI
http://hdl.handle.net/10201/206141
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