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power stroke

Spanish translation: golpe de potencia

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English term or phrase:power stroke
Spanish translation:golpe de potencia
Entered by: aless
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12:10 Jun 23, 2004
English to Spanish translations [PRO]
Medical - Medical (general) / muscle contraction
English term or phrase: power stroke
Mechanism of muscle contraction:
Once action potential or motor nerve reaches muscle, actin and myosin fibrils glide on each other, causing muscle to contract. Myosin molecule us a helix (2 protein chains) with a tail that ends in a "head". Myosin filament, made up of approximately 200 molecules, in a bundle alternatin with parallel actin filaments that glide on each other. Actin is 2-strand helix, with one containing tropomysin. Troponin molecules attach to fibril. Actin filament and its troponin-tropomisin complex are neutralized, and contraction begins.
Contraction is assumed to occur ad head of filament rotates about pivot site, causing "hinge" (tail-head filament of myosin molecule) to slide on actin filament. This is called "power stroke".

Me perdonarán el sermón :o) pero creo que merecía la pena dar un contexto amplio.

No es que me haya levantado preguntona, es que estoy al final de un proyecto de tres meses y es ahora cuando vuelvo sobre las palabras que no logré descifrar.

Muchas gracias por vuestra ayuda.
Maria Belarra
Local time: 02:54
Golpe de potencia
en ese contexto
Selected response from:

Local time: 22:54
Grading comment
¡Muchas gracias!
4 KudoZ points were awarded for this answer

Summary of answers provided
5 +1Golpe de potencia



1 hr   confidence: Answerer confidence 5/5 peer agreement (net): +1
Golpe de potencia

en ese contexto

Local time: 22:54
Works in field
Native speaker of: Native in SpanishSpanish, Native in ItalianItalian
PRO pts in category: 24
Grading comment
¡Muchas gracias!

Peer comments on this answer (and responses from the answerer)
agree  Carmen Loren: así es
11 hrs
  -> Muchas gracias Carmen!
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