Development of the human epiglottis

Kancijan, Valentina (2008) Development of the human epiglottis. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

Differentiation of epiglottal epithelia during human development was for the first time investigated and documented in celoidine collection of human embryos from the Archive of the Department of Histology and Embryology, School of Medicine University of Zagreb. At 6 weeks epiglottal swelling is covered by a single-layered epithelium. At 8 weeks epithelium changes to a two-layered epithelium which at the end of the 8th week transformes to a multilayered immature epithelium. Unexpectedly, in the one-day-old newborn, the majority of epiglottis is covered by ciliated pseudostratified epithelium while only a minor part of the oral surface next to the tongue by the stratified squamous epithelium. At the age of 13 years and in 35-years-old adult the stratified squamous epithelium is dominating. This reversal of proportion covered by different types of epithelia between birth and puberty/adulthood is probably connected to the establishment of the air-flow which could be stimulating for differentiationo of stratified squamous epithelium.

Item Type: Thesis (Diploma thesis)
Keywords: epiglottis, human, development, epithelium
Supervisor: Jurić-Lekić, Gordana
Date: 2008
Number of Pages: 44
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 12 Sep 2014 12:11
Last Modified: 12 Sep 2014 12:11
URI: http://digre.pmf.unizg.hr/id/eprint/2746

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