Lactic acid

A weak acid that is produced when body cells break down glucose by anaerobic metabolism in order to produce energy. Lactic acid is produced by muscles during vigorous exercise and is one of the factors that contribute to cramp. The acid is also produced in body tissues when they receive insufficient oxygen due to impairment of their blood supply in a heart attack (see myocardial infarction or shock).

 

Online Medical Dictionary: Your essential reference to over 5000 medical terms.