Central and peripheral connections of an identified pedal neurone modifying pneumostome movements in Helix

Ágnes Vehovszky, György Kemenes, Katalin S.-Rózsa

Research output: Contribution to journalArticle

5 Citations (Scopus)


1. 1. The LPd7 giant neurone on the dorsal surface of the left pedal ganglion of Helix pomatia has been identified as a new element in the regulation of the pneumostome movements. 2. 2. The LPd7 cell forms pre- and postsynaptic connections with a number of central neurones in the suboesophageal ganglia and also has widespread peripheral connections. 3. 3. Upon weak tactile stimulation the LPd7 neurone receives excitatory inputs from the foot and mantle collar. 4. 4. Discharge of the neurone resulted in closing movement of the pneumostome, similar to the effect of parietal giant neurones triggering the withdrawal reaction of the animal. 5. 5. However, the parietal and LPd7 cells exert their efferent reaction via parallel neural pathways.

Original languageEnglish
Pages (from-to)735-741
Number of pages7
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Issue number4
Publication statusPublished - 1989


ASJC Scopus subject areas

  • Physiology

Cite this