AYŞE HALIGÜR, Nejdet DURSUN

Yeni Zelanda tavşanında nervus vagus' un göğüs boşluğundaki seyri ve dalları

Bu çalışmada 12 erişkin Yeni Zelanda tavşanı kullanıldı. Tavşanlara reklendirilmiş latex intravenöz enjekte edildi. Göğüs boşluğunda sağ ve sol n. vagus'un seyirlerinde farklılık olduğu belirlendi. Nervus vagus dexter'den ayrılan rami cardiaci sayısının sol taraftan fazla olduğu saptandı. Nervus laryngeus recurrens dexter'in sağ n. vagus'tan a. subclavia dextra'yi geçtiği düzeyde ayrıldığı, n. laryngeus recurrens sinister'in ise sol n. vagus'tan arcus aortae'yi hemen geçtiği düzeyde çıktığı görüldü. Rami bronchales'in, n. vagus'tan bifurcatio tracheae düzeyinde ayrıldığı ve plexus pulmonalis'in oluşumuna katıldığı gözlendi. Nervus vagus dexter ve sinister'in bifurcatio tracheae düzeyinde 7 tavşanda dorsal ve ventral iki dala ayrıldığı, 5 tavşanda ise tek bir dal halinde seyrine devam ettiği belirlendi. Rami esophagei'nin, 7 tavşanda dorsal ve ventral dallardan ayrıldığı, 5 tavşanda ise n. vagus dexter ve sinister'den çıktığı ve plexus esophageus'un oluşumuna katıldığı saptandı.

Anahtar Kelimeler:

periferal sinirler, tavşan, göğüs boşluğu, toraks, anatomi

Course and branches of the vagal nerve in the thoracic cavity in the new Zealand rabbit

In this study 12 adult New Zealand rabbits were used. Coloured latex was intravenously injected to the rabbits. The cadavers were dissected and photographed. In the thoracic cavity there were differences in the course of the right and left vagal nerve. Number of cardiac branches arised in right vagal nerve appeared to be more than left side. It was noticed that right recurrent laryngeal nerve was given off by the right vagal nerve at about level of right subclaviac arter while left laryngeal nerve was originated from the left vagal nerve at the level of aortic arch. Bronchal branches, left from vagal nerve at tracheal bifurcation and joined to the pulmonal plexus. Right and left vagal nerve at the level of tracheal bifurcation were divided into two branches (dorsal and ventral) in 7 rabbits and it continued as a single branch in 5 rabbits. Esophageal branches were given off by dorsal and ventral branches of the vagal nerve in 7 rabbits. It was originated from left and right vagal nerve in 5 rabbits and the esophageal plexus was formed.

Keywords:

peripheral nerves, rabbits, thoracic cavity, thorax, anatomy,

PDF

___

1.Barone R, Pavaux G, Blin PC, Cuq P.: Atlas D'anatomie Du Lapin. Atlas of Rabbit Anatomy. Maşson C. Editeurs 120. Boulevard. Saint-Germain. Paris. 85-119. 1973.
2.Tecirlioğlu S: Sinir Sistemi. AÜ Vet Fak Yay 389, AÜ Basımevi, Ankara,, 9-156, 1983.
3.Bahadır A, Yıldız B, Serbest A, Yılmaz O, Yıldız H: Kıvırcık koyunu ye keçilerde nervus vagus üzerinde makroskopik ve subgros araştırmalar. UÜ Vet Fak Dergisi, 15: 129-140,1996.
4.Mizeres NJ: The anatomy of the autonomic nervous system in the dog. Am JAnat, 96:285-318. 1955.
5.Doğuer S, Erençin Z: Evcil Hayvanların Komparatif Neurologia'sı. Ankara.. AÜ Basımevi, 1966.
6.Popesko P, Rajtöva V, Horak J: A Color Atlas of Anatomy of Small Laboratory Animals. Vol-1, Rabbit-Guinea Pig. Wolfe Publishing Ltd, Torrington Place, London. ,4-65,1992.
7.Getty R: The Anatomy of the Domestic Animals 5.th ed, Vol. MI, WB Saunders Company, London, 195-2033,1975.
8.Quan Qi B, Merei J, Farmer P, Hasthorpe S, Myers NA, Beasley SW, Hütsön' JM: The vagus and recurrent laryngeal nerves in rodent experimental model of esophageai atresia. J Pediat Surg, 32: 1580-1586,1997. 9.Dursun N: Veteriner Anatomi III. Medisan Yayın Evi, Ankara, 27-146,2000.
10.Mckibben JS, Getty R: A comparative morphologic study of the cardiac innervatibn in.domestic animals. I The canine. Am J Anat, 122: 533-544, 1968.
11.Agostoni E, Chinnock JE, De Burgh Daly M, Murray JG: Functional and histological studies of theyaguş nerve and its branches to the heart, lungs and abdoininal viscera in the cat. j Physiol, 135: 182-205, 1957
12.Evans DHL, Murray JG: Hiştological and functional studies on the fibre composition .of the vagus nerve, of the rabbit. j Anat, 88: 320-337,; 1954.
13.Erimoğlu C: Anatomi Sözlüğü. Istanbul İniversitesi Diş Hekimliği Fakültesi Yayınları İstanbul., 1982.
14.Bround KG, Steiss JE, Marshall AE, Mehta JR, Toivio-Kinnucan M, Âmling KÂ: Morphologic and mörphornetric studies of the vagus and recurrent laryngeal nerves in clinically normal adult dogs. Am. J Vet Res, 12: 2111-2116, 1988.
15.Jenkins TW: Functional Mammalian Neuroanatomy. Lea & Febiger. Philadelphia, 20-271,1972.
16.Nickel R, Schummer A, Seiferle E: Lehrbuch der Anatomie der Haustiere. Verlag Paul Parey, Hamburg, 138-143, 1975. 17.Hoffman HH, Kiintz A: Vagus nerve components. Anat Record, 127: 551-567,1957.
18.Craigie EH: Bensleyfs Practical Anatomy of the Rabbit. Eighth Edition. University of Toronto press. Toronto, 89-359, 1969.
19.Berthoud HR, Fox E A, Powley TL: Abdominal patways and central origin of the rat vagal fibers that stimulate gastric acid.Gastroentrology,100: 627-637,1991.
20.Sato M, Koyano H: Autoradiografic study on the distribution of vagal afferent nerve fibers in the gastroduodenal wall of the rabbit. Brain Research, 400: 101-109, 1986.
21.Holmes DD: Clinical Laboratory Animal Medicine. Iowa: The Iowa State University Press, 100-115,1984.
22.Nomina Anatomiea Veterinaria: Fourth Edition. Published by the International Commitees on Veterinary Gross Ana-tomical Nomelecture. Zurich and Ithaca, New York, 118-119,1994.