A myoneme (or spasmoneme) is a contractile structure found in some eukaryotic single-celled organisms, particularly Vorticella. It consists of a series of protein filaments that shorten rapidly upon exposure to calcium. Although the shortening can be up to 100 lengths per second, faster than any muscle, the relaxation time is several seconds (comp...
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http://en.wikipedia.org/wiki/Myoneme
(from the article `muscle`) ...organisms are capable of amoeboid movement, in which the cell contents flow into extensions, called pseudopodia, from the cell body. Some of the ...
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http://www.britannica.com/eb/a-z/m/147
<biology> Contractile organelle of ciliates, referred to as M bands in Stentor, where they are composed of 8-10 nm tubular fibrils. The spasmoneme of peritrich ciliates was originally called a myoneme. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973
Contractile organelle of ciliate protozoans; referred to as M-bands in Stentor , where they are composed of 8-10nm tubular fibrils. The spasmoneme of peritrich ciliates was originally called a myoneme.
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Type: Term Pronunciation: mī′ō-nēm Definitions: 1. A muscle fibril. 2. One of the contractile fibrils of certain protozoans; thought to function in an analogous fashion to metazoan muscle fibers.
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No exact match found.
