| How tubular venom-conducting fangs are formed. | |
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MedLine Citation:
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PMID: 11948676 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Elapids, viperids, and some other groups of colubroid snakes have tubular fangs for the conduction of venom into their prey. The literature describing the development of venom-conducting fangs provides two contradictory accounts of fang development. Some studies claim that the venom canal forms by the infolding of a deep groove along the surface of the tooth to produce an enclosed canal. In other works the tubular fang is said to form by the deposition of material from tip to base, so that the canal develops without any folding. This study was undertaken to examine fang development and to account for the disagreement in the literature by determining whether fang formation varies among groups of venomous snakes and whether it differs between embryos and adults. Adult and embryonic representatives of elapids and viperids were examined. All fangs examined, elapid and viperid, embryos and adults, were found to develop into their tubular shape by the addition of material to the basal end of the tooth rather than by the folding inward of an ungrooved tooth to form a tubular fang. In some cases, the first fang that develops in embryonic snakes differs morphologically from all those formed subsequently. |
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Authors:
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Kate Jackson |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of morphology Volume: 252 ISSN: 0362-2525 ISO Abbreviation: J. Morphol. Publication Date: 2002 Jun |
Date Detail:
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Created Date: 2002-04-11 Completed Date: 2002-12-04 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0406125 Medline TA: J Morphol Country: United States |
Other Details:
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Languages: eng Pagination: 291-7 Citation Subset: IM |
Copyright Information:
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Copyright 2002 Wiley-Liss, Inc. |
Affiliation:
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Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts 02138, USA. kjackson@oeb.harvard.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Snake Venoms / metabolism* Snakes / anatomy & histology, embryology* Tooth / anatomy & histology, embryology*, growth & development |
| Chemical | |
Reg. No./Substance:
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0/Snake Venoms |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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