Glossary search results for: block 1 In physiology and pharmacology block usually means to stop something happening (eg a local anaesthetic blocks action potentials in nerve fibres) or to diminish (by any of a number of ways) the effectiveness of a drug eg curare blocks the action of acetylcholine at the nerve-muscle junction 2 An experiment with trials carried out in a block means the trials are close in time or not interspersed with other trials under different conditions
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Posted: Sunday, March 31, 2013 Last updated: Friday, August 28, 2015