PMID: 9557966Apr 29, 1998Paper

Fine structure of the tongue and lingual papillae of the penguin

Archives of Histology and Cytology
K KobayashiT Asami

Abstract

The tongue in four species of penguin was investigated by light microscopy and by scanning electron microscopy, with special reference to the lingual papillae. 1) The middle of the penguin tongue contains a pair of long cartilages and long tendons accompanied by striated muscle bundles. 2) Large, spine-like, and caudally directed lingual papillae (filiform-like papillae) densely cover the dorsal surface of the tongue, apparently serving to catch fishes. 3) By light microscopy, the dorsal lingual epithelium with the lingual papillae are seen as a thick cornified layer, but the lateral and lower surfaces have a thinner cornified layer. 4) The connective tissue core (CTC) under the epithelium of the lingual papilla shows a stereo structure similar to but smaller than the external form of the papilla. The CTC contains some blood vessels and nerve fibers; the lingual glands are found in the submucous layer only in the posterior tongue. 5) Bundles of nerve fibers in the lamina propria of the tongue were immunohistochemically positive for PGP 9.5, and it appeared that Merkel corpuscles were distributed in the connective tissue closely beneath the epithelium of the finger-like papillae, though they were only weakly immunoreactive for P...Continue Reading

Citations

Aug 13, 2002·Journal of Anatomy·Shin-ichi Iwasaki
Apr 4, 2009·Zoological Science·Juliana Plácido GuimarãesIi-Sei Watanabe
Jul 9, 2010·Zoological Science·Hanna JackowiakSzymon Godynicki
Aug 20, 2014·Micron : the International Research and Review Journal for Microscopy·Kinga Skieresz-SzewczykMarlena Ratajczak
Nov 3, 2009·Progress in Neurobiology·Ian N M Day, Rod J Thompson
May 25, 2010·Anatomia, histologia, embryologia·M R Crole, J T Soley
Nov 14, 2013·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Serkan Erdoğan, Shin-ichi Iwasaki
Apr 21, 2016·Microscopy Research and Technique·Sheren Al-Ahmady Al-Zahaby
Feb 19, 2015·Current Biology : CB·Huabin ZhaoJianzhi Zhang
Aug 21, 2016·Journal of Anatomy·Ryoko Matsumoto, Susan E Evans
Oct 26, 2018·Anatomical Science International·Mohamed M A Abumandour, Mahmoud S Gewaily
Aug 11, 2011·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Hanna JackowiakWilfried Meyer
Jun 14, 2017·PeerJ·Alejandro Rico-Guevara
May 16, 2019·Microscopy Research and Technique·Mohamed M A AbumandourBasma G Hanafy
Feb 6, 2020·Frontiers in Zoology·Hannah Joy KriesellDaniel Normen Düring
Dec 6, 2017·Anatomia, histologia, embryologia·B Marzban Abbasabadi, R Sayrafi
Jun 23, 2018·Anatomical Science International·Mohamed M A Abumandour, Neveen E R El-Bakary
Apr 11, 2018·The Journal of Experimental Biology·Alexis C Noel, David L Hu
Jul 9, 2021·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Ahmed A El-MansiDina A El-Badry

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