「Muscle06/effect of intrafusal muscles」の版間の差分

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The intrafusal muscles locate on both ends of the muscle spindle.  So, when the intrafusal muscles contract, the muscle spindle is stretched and sensitivity to further stretching is increased.
The intrafusal muscles locate on both ends of the muscle spindle.  So, when the intrafusal muscles contract, the muscle spindle is stretched and sensitivity to further stretching is increased.
The extrafusal muscles are innervated by alpha motor neurons, and the intrafusal muscles innervated by the gamma motor neurons.


  [[ファイル:03512en.jpg|400px|left]]  
  [[ファイル:03512en.jpg|400px|left]]  
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<GIFT>
<GIFT>
//LEVEL:4
//NO-RAND
The intrafusal muscles are innervated by the {=gamma.~alpha} motor neurons.
//LEVEL:4
//NO-RAND
The extrafusal muscles are innervated by the {~gamma.=alpha} motor neurons.


//LEVEL:2
//LEVEL:2
//RAND
//RAND
With contraction of the intrafusal muscles, the sensitivity of the muscle spindles {=increase.~does not change very much.~decrease}.
With contraction of the intrafusal muscles, the sensitivity of the muscle spindles {=increase.~does not change very much.~decrease}.
</GIFT>
</GIFT>

2012年9月27日 (木) 20:42時点における版

The intrafusal muscles locate on both ends of the muscle spindle. So, when the intrafusal muscles contract, the muscle spindle is stretched and sensitivity to further stretching is increased.

03512en.jpg

Challenge Quiz

1.

With contraction of the intrafusal muscles, the sensitivity of the muscle spindles increase. does not change very much. decrease .