| Semon's law | An obsolete law stating that injury to the recurrent laryngeal nerve results in paralysis of the abductor muscle of the vocal cords before paralysis of the adductor muscles. (05 Mar 2000) |
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| Semon, Richard | <person> German biologist, 1859-1908. See: Semon-Hering theory. (05 Mar 2000) |
| Semon, Sir Felix | <person> German laryngologist in Britain, 1849-1921. See: Semon's law, Gerhardt-Semon law. (05 Mar 2000) |
| Semon-Hering theory | The theory that stimuli or irritants leave definite traces (engrams) on the protoplasm of the animal or plant, and when these stimuli are regularly repeated they induce a habit which persists after the stimuli cease; assuming that the germ cells share with the nerve cells in the possession of engrams, acquired habits may thus be transmitted to the descendants. Synonym: mnaemic theory, mnemism, Semon-Hering theory. (05 Mar 2000) |
| Gerhardt-Semon law | <otolaryngology> An obsolete law formerly used to account for the position of an affected vocal cord or cords after injury to the recurrent laryngeal nerve or nerves. (05 Mar 2000) |
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