Pharyngeal movements during feeding sequences of Navanax inermis (Gastropoda: Opisthobranchia) in successive stages of dissection.

A. J. Susswein, Y. Achituv, M. S. Cappell, Michael V. L. Bennett

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Feeding in Navanax inermis Cooper was filmed and analysed after various dissections. In preparations with a cut through the body wall exposing the pharynx and buccal ganglia, completely normal feeding was observed. In addition to seven motor acts previously described in intact animals, an eighth act, peristalsis, was observed. In preparations with the pharynx excised from the animal but attached to the buccal ganglia, four motor acts were observed: flaring, expansion, contraction and peristalsis. In addition to increasing information about the nature of feeding movements in Navanax, these data indicate that preparations suitable for neurophysiological studies are capable of producing a variety of feeding acts.

Original languageEnglish (US)
Pages (from-to)323-333
Number of pages11
JournalJournal of Experimental Biology
Volume128
StatePublished - Mar 1987
Externally publishedYes

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peristalsis
Peristalsis
Gastropoda
Cheek
pharynx
dissection
Pharynx
Ganglia
Dissection
integument
animals
animal
contraction

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Pharyngeal movements during feeding sequences of Navanax inermis (Gastropoda : Opisthobranchia) in successive stages of dissection. / Susswein, A. J.; Achituv, Y.; Cappell, M. S.; Bennett, Michael V. L.

In: Journal of Experimental Biology, Vol. 128, 03.1987, p. 323-333.

Research output: Contribution to journalArticle

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