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Extension (kinesiology)
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Extension (kinesiology)
In kinesiology, extension is a movement of a joint that results in increased angle between two bones or body surfaces at a joint. Extension usually results in straightening of the bones or body surfaces involved. For example, extension is produced by extending the flexed (bent) elbow. Straightening of the arm would require extension at the elbow joint. If the head is tilted all the way back, the neck is said to be extended.
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Extension (Medizin)
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Extension
- För det filosofiska begreppet extension, se Extension (filosofi)
- För det datorrelaterade begreppet extension, se Filändelse
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Ekstenzija
Ekstenzija, jeb atliekšana anatomija ir kustiba, kuras laika palielinas lenkis starp divu blakus esošo kermena segmentu virsmam, tacu ir ari iznemumi - rokas ikška ekstenzija, kajas pirkstu ekstenzija, cela ekstenzija. Ekstenzija notiek sagitalaja plakne ap horizontalu asi, kas atrodas frontalaja plakne. Piemeram, veicot ekstenziju elkona locitava, palielinas lenkis starp augšdelmu un apakšdelmu, bet veicot ekstenziju celi, palielinas lenkis starp augšstilba un apakšstilba mugurejam virsmam. Dažas locitavas, piemeram, cela un elkona, ir iespejama ari hiperekstenzija, kad ir palielinats locitavas kustibas apjoms un kustiba notiek "pari" anatomiskajai pozicijai. Muskuli, kuru funkcija ir ekstenzija, tiek saukti par ekstenzoriem. Preteja kustiba ekstenzijai ir fleksija.
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| Extension (kinesiology) in English | Extension (kinesiology) in German | Extension (kinesiology) in Latvian | Extension (kinesiology) in Swedish
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