[The morphological changes in the body during overheating].

Acute and chronic overheating causes considerable circulatory disorders in internals of experimental animals determined morphologically by systemic lesion of microcirculatory blood vessels. Acute overheating was established to be complicated by heatstroke manifesting in acute failure of vitals--lungs, brain and myocardium. Microcirculatory lesion in chronic overheating is caused by irreversible disorders of blood circulation, secondary hypoxic damage of organs and tissues with their functional failure.