Zeitschrift für Morphologie der Tiere

, Volume 73, Issue 2, pp 145–162 | Cite as

The mandibular muscle receptor organ of Homarus gammarus (L.) (crustacea, decapoda)

  • W. Wales
  • M. S. Laverack
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Summary

A muscle receptor organ is present in the mandible of macruran decapods. The mandibular muscle receptor organ (Mand. MRO) of Homarus gammarus (L.) consists of a ribbon of muscle innervated at its ventral insertion by 10–20 multiterminal sensory neurones. The sensory cells have a small number of dendritic processes.

The receptor muscle exhibits some structural properties of both fast and slow muscle. The mean sarcomere length is similar to that of the slow abdominal MRO but the receptor muscle in cross section has a punctate distribution of myofibril bundles more typical of fast muscle.

Keywords

Structural Property Developmental Biology Sensory Neurone Sensory Cell Sarcomere Length 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag 1972

Authors and Affiliations

  • W. Wales
    • 1
  • M. S. Laverack
    • 1
  1. 1.Gatty Marine Laboratory and Department of Natural HistoryUniversity of St. AndrewsUK

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