Morphology of the oropharyngeak cavity and oesophagus of the farmed adult African catfish (Clarias gariepinus Burchell, 1822)
Palabras clave:
Oropharyngeal Cavity, Oesophagus, Histology, Histochemistry, Mucin, African CatfishResumen
La morfología bagre africano del adulto cultivado -Clarias gariepinus- una especie omnívoras cultivables prominente en Nigeria fue investigada. Reveló placas córneas que cubren las superficies vestibulares de los labios. La lengua no tiene movimiento libre y el esófago es un tubo estrecho que conecta la cavidad orofaríngea al estómago sin válvula o constricción que lo separe. Histológicamente, la pared de la cavidad estaba revestida por epitelio escamoso estratificado que contiene células eosinófilas, células mucosas y papilas gustativas. La laminar propia contenía fibras de colágeno denso. No fie vista ninguna papila gustativa en la lengua lo que sugiere la no participación la selección de los alimentos a través gustación a diferencia de la pared de la cavidad que contiene papilas gustativas. El esófago estaba revestido por epitelio estratificado que contiene células mucosas. La histoquímica reveló la presencia de ácido a neutro, y la combinación de los dos. La gran extensión de mucificación esofágica indica la necesidad de lubricación de mucina de los alimentos se sabe que los teleósteos carecen de glándulas salivales y también una adaptación a la ingestión de alimentos variados.
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