Document Detail

Light and scanning electron microscopic studies on the esophageal spines in the Pacific ridley turtle, Lepidochelys olivacea.
MedLine Citation:
PMID:  1275657     Owner:  NLM     Status:  MEDLINE    
The peculairly specialized esophagus of the Pacific ridley turtle, Lepidochelys olivacea, was described by light and scanning electron microscopic studies. The esophagus is lined by a stratified squamous epithelium with remarkable keratinization, and its major part forms a number of large spines which have been called "pharyngeal teeth." The epithelium consists of three strate: stratum germinativum, stratum spinosum and stratum corneum. The surface of the spine is covered by a scaly keratin of possibly sloughing cells, and the cornified layer on the spine is very thick (more than 100 mu), reaching 3 to 7 times the depth of the corresponding layer in other parts. This peculiar structure in the marine turtle without toothed jaws prabably is used for breaking food into small pieces.
S Yoshie; Y Honma
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archivum histologicum Japonicum = Nihon soshikigaku kiroku     Volume:  38     ISSN:  0004-0681     ISO Abbreviation:  Arch Histol Jpn     Publication Date:  1976 Feb 
Date Detail:
Created Date:  1976-08-02     Completed Date:  1976-08-02     Revised Date:  2011-07-29    
Medline Journal Info:
Nlm Unique ID:  0146564     Medline TA:  Arch Histol Jpn     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  339-46     Citation Subset:  IM    
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MeSH Terms
Esophagus / ultrastructure*
Mucous Membrane / ultrastructure
Turtles / anatomy & histology*

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