Malaklı Köpeğinde Pleksus Brachialis ve Dallarının Makroanatomik İncelenmesi Malaklı Köpeğinde Plexus Brachialis Oluşumu

Öz

Çalışmada, ön bacağın innervasyonunu sağlayan sinirlerin orijin ve seyirlerinin belirlenmesi amacıyla 10 adet erişkin, cinsiyet farkı gözetilmeyen Malaklı köpeği kullanıldı. Kadavralar 14 gün boyunca %10’luk formaldehit solüsyonunun içinde bekletildikten sonra diseksiyonları yapılarak çalışmada sunuldu. Yapılan çalışmada kullanılan 10 materyalin 8’inde (%80) plexus brachialis’in C6-T1’den iki (%20) materyalde ise C6-T2’den oluştuğu tespit edildi. Nervus suprascapularis ve nn. subscapularis’in altıncı ve yedinci servikal spinal sinirlerinin ventral kollarından meydana geldiği tespit edilmiştir. N. musculocutaneus’un C6 ve C7 servikal spinal sinirinin ventral kolundan orijin aldığı ve orijininde n. pectoralis cranialis ile birlikte olup, ondan ayrıldıktan sonra articulatio cubiti’nin üst 1/3’ünde, n. medianus’a bir bağlantı dalı verdiği gözlendi. N. radialis’in yedinci ve sekizinci boyun sinirlerinin ve birinci göğüs sinirinin ventral kolu tarafından oluşturulan ve makroskobik olarak plexus brachialis'ten çıkan en kalın sinir olduğu belirlendi. N. medianus’un, araştırmada kullanılan materyallerin tamamında n. ulnaris ile ortak bir kök halinde çıktığı ve materyallerin sekizinde C8-T1’den, ikisinde ise C8-T2’nin ventral kolları tarafından oluşturulduğu tespit edildi.

Anahtar Kelimeler

• Ön extremite
• Malaklı Köpeği
• Sinir
• Plexus brachialis

Etik Beyan

Bu çalışma için Balıkesir Üniversitesi Hayvan Deneyleri Yerel Etik Kurulu’ndan (BAÜN HADYEK) 18.12.2025 tarih ve 2025/12-9 sayılı karar ile etik kurul onayı alınmıştır.

Macroanatomical Investigations of Plexus Brachialis and Its Branches in The Malaklı Dog

Öz

This study examined ten healthy adult Malaklı dogs to determine the origin and course of nerves innervating the forelimb. Cadavers were fixed in 10% formaldehyde for 14 days before anatomical dissection. The brachial plexus consisted of spinal nerves C6–T1 in eight specimens (80%) and C6–T2 in two specimens (20%). The nervus suprascapularis and nervi subscapulares were found to originate from the ventral branches of the sixth and seventh cervical spinal nerves. The nervus musculocutaneus was observed to it originates from the ventral branch of the C6 and C7 cervical spinal nerve and is together with the nervus pectoralis cranialis at its origin, after leaving it, gives a connecting branch to the nervus medianus in the upper 1/3 of the articulatio cubiti. It was determined that the nervus radialis is the thickest nerve formed by the ventral branch of the seventh and eighth cervical spinal nerves and the first thoracic spinal nerve and emerging from the plexus brachialis macroscopically. The nervus medianus appeared as a common root with nervus ulnaris in all of the materials used in the study. It was determined that eight of the materials were formed by C8-T1 and two of them were formed by the ventral branches of C8-T2.

Anahtar Kelimeler

• Forelimb
• malaklı dog
• nerve
• plexus brachialis

Etik Beyan

This study was approved by the Animal Experiments Local Ethics Committee of Balıkesir University (BAUN HADYEK) with the decision dated 18.12.2025 and numbered 2025/12-9, and was conducted in accordance with the relevant legislation and ethical regulations.

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