Extensor muscle: Difference between revisions
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An '''extensor muscle''' is any [[skeletal muscle]] that opens a joint increasing the angle between components of a limb, such as straightening the [[knee]] or [[Elbow-joint|elbow]] and bending the [[wrist]] or [[vertebral column|spine]]. With the exception of the knee joint the movement is directed backward. This action is known as [[Anatomical terms of motion|extension]]. |
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The type of muscle that has the opposite effect is the [[flexor muscle]], which closes a joint, decreasing the angle between limb components. |
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In humans, some muscles include 'extensor' in their name, some include; |
In humans, some muscles include 'extensor' in their name, some include; |
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Revision as of 21:06, 15 November 2007
this is shit!!!!!!!!!!! In humans, some muscles include 'extensor' in their name, some include;
- Extensor carpi radialis brevis
- Extensor hallucis longus muscle
- Extensor carpi ulnaris muscle
- Extensor carpi radialis longus muscle
For further reference see genetic origin.