Contraction in stentor coeruleus: A cinematic analysis

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Abstract

The convoluted M bands of the protozoan Stentor coeruleus straighten before the animal contracts. Mechanical stimulation initiates contraction locally, and then contraction spreads over the animal with a propagation velocity of 5 to 25 centimeters per second. The contractile wave may spread in both anterior and posterior directions. Electrical stimulation initiates contraction in all areas of Stentor simultaneously.

Original languageEnglish (US)
Pages (from-to)447-449
Number of pages3
JournalScience
Volume177
Issue number4047
DOIs
StatePublished - Jan 1 1972

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