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nerve |
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nerveBundle of nerve cells enclosed in a sheath of connective tissue and transmitting impulses to and from the brain and spinal cord. A single nerve may contain both motor and sensory nerve cells, but they function independently. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Most roots, however, innervate more than one muscle, and most muscles have multilevel innervation. Additionally, the recovery from paralytic poliomyelitis has been attributed to the sprouting of axons that innervate the muscle fibers left orphaned by the disease. A motor unit consists of a nerve and all the muscle fibers it innervates. |
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