「Nerve06/axon/axonal injury」の版間の差分
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A skeletal muscle is innervated by the axon of a motor neuron. When the axon is injured, the muscle is denervated. The nerve may be sutured, but the distal portion of the axon will degenerate, which is called Wallerian degeneration. However, the proximal portion of the axon regenerates, and the muscle is reinnervated. | A skeletal muscle is innervated by the axon of a motor neuron. When the axon is injured, the muscle is denervated. The nerve may be sutured, but the distal portion of the axon will degenerate, which is called Wallerian degeneration. However, the proximal portion of the axon regenerates, and the muscle is reinnervated. | ||
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//LEVEL:3 | //LEVEL:3 | ||
//RAND | //RAND | ||
After axon injury, the {~proximal | After axon injury, the {~proximal~=distal} portion degenerate. This is named after Waller (UK), as Wallerian degeneration. | ||
//LEVEL:3 | //LEVEL:3 | ||
//RAND | //RAND | ||
With axon injury at one point of the axon, most of the supporting cells {=remain alive | With axon injury at one point of the axon, most of the supporting cells {=remain alive~degenerate}. | ||
//LEVEL:3 | //LEVEL:3 | ||
//RAND | //RAND | ||
Axonal regeneration takes place along the remaining supporting cells. {=true | Axonal regeneration takes place along the remaining supporting cells. {=true~false} | ||
</GIFT> | </GIFT> | ||
2015年4月17日 (金) 11:23時点における最新版
A skeletal muscle is innervated by the axon of a motor neuron. When the axon is injured, the muscle is denervated. The nerve may be sutured, but the distal portion of the axon will degenerate, which is called Wallerian degeneration. However, the proximal portion of the axon regenerates, and the muscle is reinnervated.
Challenge Quiz
1.
After axon injury, the proximal distal portion degenerate. This is named after Waller (UK), as Wallerian degeneration.
2.
With axon injury at one point of the axon, most of the supporting cells remain alive degenerate .
3.
Axonal regeneration takes place along the remaining supporting cells. true false