Sıçanlarda nervus hypoglossusun ultrastrukturel yapısının incelenmesi
Küçük Resim Yok
Tarih
1997
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Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Sıçan nervus hypoglossus ultrastrüktürü rezeksiyondan sonra incelendi. Bu segmentler Caulfield fiksatifinde immersiyonla fikse edildi ve EM'ta görüntülendi. Bu çalışmada ana bulgu, büyük ve orta çaplı myelinli aksonlar ile myelinsiz aksonlardır. Schwann hücreleri, geniş ve orta çaplı myelinli aksonlar ve myelinsiz aksonlarla birlikte gözlendi. Bu hücreler dıştan kollagen fibrillerle çevriliydi. Nervus hypoglossusun Remak kordonlarının 5-7 myelinsiz akson içerdiği gözlendi. Aksoplasmik organeller, neuroflament, neurotubulus, aksoplasmik reticulum ve mitokondriumdan oluşmuştur. Myelinsiz aksonlarda neurotubuluslarm, neuroflamentlere göre rölatif olarak fazla olduğu saptandı. Aksoplasmik retikulumun birbirleri ile bağlantılı tubul ve veziküller içerdiği görüldü.
Ultrastructure of hypoglossal nerve of the rat was analyzed after resection. This segments were fixed in Caulfield and examinated with EM. The major observations of this study were large myelinated axons, medium myelinated axons and nonmyelined axon. Schwann cells assosiated with large myelinated axons and medium myelinated axons or unmyelinated axons were observed. This cells were wrapped around collagen fibers. Remak bundles of the hypoglossal nerve contained five to seven nonmyelinated axons.' Axoplasmic organelles were neuroflament, neurotubulus, axoplasmic reticulum and mitochondria. The neurotubulus were relatively more numerous than neuroflaments in unmyelinated axons. Axoplasmic reticulum consisted interconnecting tubes and vesicules were determineted.
Ultrastructure of hypoglossal nerve of the rat was analyzed after resection. This segments were fixed in Caulfield and examinated with EM. The major observations of this study were large myelinated axons, medium myelinated axons and nonmyelined axon. Schwann cells assosiated with large myelinated axons and medium myelinated axons or unmyelinated axons were observed. This cells were wrapped around collagen fibers. Remak bundles of the hypoglossal nerve contained five to seven nonmyelinated axons.' Axoplasmic organelles were neuroflament, neurotubulus, axoplasmic reticulum and mitochondria. The neurotubulus were relatively more numerous than neuroflaments in unmyelinated axons. Axoplasmic reticulum consisted interconnecting tubes and vesicules were determineted.
Açıklama
Anahtar Kelimeler
Cerrahi
Kaynak
Ege Tıp Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
36
Sayı
1-2
