Encyclopedia of Parasitology

2016 Edition
| Editors: Heinz Mehlhorn


  • Heinz Mehlhorn
Reference work entry
DOI: https://doi.org/10.1007/978-3-662-43978-4_3978


Greek: isthmus = constriction. This term describes the constriction of the esophagus of the first and second larvae of some nematodes (e.g., Necator, Ancylostoma,   Strongyloides ), which disappears after the molt to the infectious larva 3.

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Institut für Zoomorphologie, Zellbiologie und ParasitologieHeinrich-Heine-UniversitätDüsseldorfGermany