ISSN: 1300-0292
İndekslendiği Dizinler: SCIENCE CITATION INDEX EXPANDED
CINAHL, Index Copernicus,
Chemical Abstracts (CA),
Excerpta Medica / EMBASE
Dil: Türkçe, İngilizce
İçerik: Orijinal Araştırma, Derleme, Editöre Mektup, Olgu Sunumu, Tıp Eğitimi, Tıbbi Kitap İncelemeleri
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ORIGINAL RESEARCH ARTICLES |
A Study On The Prenatal And Postnatal Development Of Rat Esophagus
Hülya ÇETİN SORKUN*, Saim ÖZDAMAR**
* Dr., Denizli Health Services Vocational College of Pamukkale University, Denizli, TURKEY
** Ass.Prof., Dept. of Histology and Embryology, Medical School of Erciyes University, Kayseri, TURKEY
In this study, prenatal and postnatal development of rat esophagus was investigated using light microscope. For this purpose, esophaguses obtained from fetuses at 7, 10, 13, 15, 17 days of gestation and from newborn at 5, 10 days after birth were studied by histological methods.At the 7th day of gestation esophagus had a simple columnar epithelium in the spreading mesenchyme. At this time, the other layers of esophagus were not seen. At the fetal 10th day, esophagus had a simple columnar epithelium. On the 13th day, mesenchymal cells surround esophagus and in this stage, esophagus epithelium was 4-6 cell thick. At the fetal 15th day, esophagus had stratified epithelium consisting of 2-3 row cells and was surrounded with circular myoblast layers. The esophageal epithelium of fetal rats of 17th day was stratified squamous of 4-5 cells thick. The longitudinal muscle layers were seen in this stage.The esophageal epithelium was non-keratinized stratified squamous at postnatal 5th day. At the postnatal 10th day esophageal epithelium was keratinized stratified squamous type.We are in the opinion that the findings obtained in this work enlighten other morphological investigations related to the development of rat esophagus, and contribute to literature.Keywords: Rats, Esophagus, embryology, growth & developmentTurkiye Klinikleri J Med Sci 2002, 22:31-35
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