Conduction system in a sponge.

I D Lawn; G O Mackie; G Silver

doi:10.1126/science.7466387

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PubMed · 7466387

Conduction system in a sponge.

I D Lawn·G O Mackie·G Silver

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Abstract

The hexactinellid sponge Rhabdocalyptus dawsoni is capable of arresting its exhalant water current in response to mechanical and electrical stimuli. The arrest is coordinated by a conduction system with a precise threshold of excitability and a chronaxie of 38 milliseconds. The response is propagated throughout the sponge at a mean velocity of 0.22 centimeter per second, and conduction is unpolarized.

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Animals Behavior, Animal Cell Communication Electric Stimulation Electrophysiology Neural Conduction Porifera Water Journal Article Research Support, Non-U.S. Gov't

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I D Lawn, G O Mackie, G Silver. 1981-03-13. Conduction system in a sponge.. https://doi.org/10.1126/science.7466387

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