Nerve cord shortening induced by activation of the fast conducting system in the leech.
D000818:Animals; D004558:Electric Stimulation; D066298:In Vitro Techniques; D007865:Leeches; D008274:Magnesium / Q000494:pharmacology; D009119:Muscle Contraction; D009431:Neural Conduction; D009474:Neurons / Q000502:physiology*; D010775:Photic Stimulation; D011930:Reaction Time
D008274:Magnesium