An arrow-poison used by South American Indian hunters, extracted from various plants, chiefly of the genera Strychnos and Chondrodendron, killing by respiratory paralysis. Curare is a mixture of alkaloids, the chief being d-tubocuranine. By competing with acetylcholine it blocks the transmission of nerve impulses to muscles, producing relaxation and paralysis. Curare has revolutionized modern surgery by producing complete relaxation without a dangerous degree of anesthesia being required. See also tetanus.
Related category• BIOCHEMISTRY
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