The Anatomy of Cervical Sympathetic Ganglia in Saanen Goats

Abstract

 Sympathetic ganglions located in the cervical region are important organs that make the final synapse of the sympathetic nerve fibers reached to the head, neck, and forelimbs. No anatomical data about cervical sympathetic ganglia was found in Saanen goat. Therefore, we determined the nerve branches separated from the ganglia and the location of the ganglia, and also, the expression of enzyme and protein such as tyrosine hydroxylase (TH), dopamine β-hydroxylase (DβH), neuropeptide Y (NPY) and substance P (SP) in ganglia. GCC was in the medial place of bulla tympanica. Mainly branches named as nn. carotici interni, n. jugularis, n. caroticus externus was found to be separated from this ganglion and thin branches joined to the nearby nerve. GCI were not found in all dissections and histological examinations. It was found that vertebral nerve, the two branches that constitute the subclavian ansa, and the thin nerve branches involved in the surrounding tissues and organs were separeted from GCT that located in the first intercostal space. A total of 5 GCM were found at the junction of the two branches forming the ansa subclavia. DßH, TH, NPY and SP were revealed to be express in all ganglia. DßH and NPY in GCC, TH in GCM, DβH, NPY and TH in GCT were found to be more intense staining

Keywords

• Anatomy,immunohistochemistry,Saanen goat,sympathetic ganglia

Saanen keçilerinde servikal sempatik ganglion’ların anatomisi

Abstract

Cervical bölgede yer alan sempatik ganglion’lar baş, boyun ve ön ektremite’lere giden sempatik sinir liflerinin son sinaps yaptığı önemli organlardır. Saanen keçisinde servikal sempatik ganglion’lara ait anatomik bilgiye rastlanılmadı. Bu nedenle, bu çalışma ile bahsi geçen ganglion’ların yeri, ganglion’dan ayrılan sinir kolları ve ganglion’lardaki dopamin β-hidroksilaz (DβH), tirozin hidroksilaz (TH), Neuropeptid Y (NYP) ve Substans P (SP) gibi bazı enzim ve protein expresyonu belirlendi. Bulla tympanica’nın medial’inde yer alan ganglion cervicale craniale (GCC)’den başlıca nn. carotici interni, n. jugularis, n. caroticus externus ve çevre sinirlere katılan ince kollar ayrıldığı görüldü. Birinci interkostal aralıkta yer alan ganglion cervicothoracicum (GCT)’dan başlıca n. vertebralis, ansa subclavia’yı oluşturan iki kol ve çevre doku ve organlara katılan ince sinir kollarının ayrıldığı belirlendi. Ansa subclavia’yı oluşturan iki kolun birleşim yerinde toplam 5 adet ganglion cervicale medium (GCM)’a rastlandı. Yapılan tüm diseksiyon ve histolojik incelemelerde truncus symphaticus’un cervical bölümünde başka bir gangliona rastlanmadı. DβH, TH, NPY ve SP’nin tüm ganglion’larda exprese olduğu, GCC’de DβH ve NPY’nin, GCM’da TH’ın, GCT’da DβH, NPY ve TH’ın daha yoğun boyanma gösterdiği belirlendi.

Keywords

• Anatomi,immunohistokimya,Saanen keçisi,sempatik ganglion

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