Investigation of Chicken (Gallus domesticus) Tongue by Morphometric and Scanning Electron Microscopic Methods

Abstract

The aim of this study was to investigate the morphology of the tongue which plays an important role in the digestive and sensory system. The tongues of 20 female broilers were examined in this study. Tongues extracted after dissection were fixed in glutaraldehyde and observed under scanning electron microscope (SEM) and photographed. Also, morphometric measurements were performed. Macroscopically, the chicken tongue was triangular, ended with a sharp tip and adapted to the lower bill. It is composed of three parts; apex, body and radix of the tongue. The row of conical papillae (papillary crest) which organized as “V” shape was seen between the lingual body and radix. There were larger conical papillae on both lateral sides of this papillary crest. 2-6 huge conical set of papillae were observed in just the caudal of these larger conical papillae. Numerous orifices of microscopic salivary glands were observed in the radix of the tongue. There was no mechanical papilla on the body of the tongue. The tip of the tongue was very sharp and highly keratinized.

Keywords

• Anatomy,SEM,poultry,tongue

Tavuk (Gallus domesticus) Dilinin Morfometrik ve Taramalı Elektron Mikroskobik Yöntemlerle İncelenmesi

Abstract

Sindirim ve duyu sisteminde önemli rol oynayan dilin morfolojik olarak incelenmesi amaçlandı. 20 dişi yetişkin broyler bu çalışma için kullanıldı. Diseksiyon sonrası çıkarılan diller glutaraldehit içinde tespit edilerek taramalı elektron mikroskobu altında gözlendi ve fotoğraflandı. Makroskobik olarak tavuk dilinin üçgen şeklinde olduğu, sivri bir uçla bittiği ve formunun alt gagaya uyum sağladığı görüldü. Apex, corpus ve radix lingua olmak üzere 3 bölümden oluştuğu izlendi. Dil üzerinde corpus ve radix arasında “V” harfi formunda organize olmuş konikal papilla sırası görüldü. Bu sıranın her iki lateral kenarında daha iri konikal papillalar bulunmaktaydı. Bu iri konikal papillaların hemen caudal’inde iki ya da üçlü konikal papilla kümeleri görüldü. Dilin kök bölgesinde mikroskobik tükrük bezlerinin çok sayıda akıtıcı kanal delikleri izlendi. Dil gövdesinde belirgin bir mekanik papilla görülmedi. Ancak, median bir oluk dikkat çekti. Dilin uç kısmı oldukça sivri olup, son derece keratinize bir yapıya sahipti.

Keywords

• Anatomi,dil,SEM,kanatlı

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