| OCR Text |
Show 11 • system activates blood flow exercise, (Hensel, work to a the and As Upon sweat and initiation of the vasoconstriction response occurs individual exercise the to adjusts • initial the body temperature increases, vasoconstriction reflexes. the As 1973). load periphery. sympathetic secretion of in the increase an is overridden by thermal vasodilation exercise progresses, inhibition of the • probably occurs. Kenney and Johnson of skin blood flow is (1992) efferent systems blood pressure, (passive withdrawal reflex vasoconstriction, drives for active the increase in skin blood flow are probably thermal deep body receptors (Wyss, Niederberger, in the the with core, Brengelmann, These 1974). preoptic anterior appropriate degree 1973). A negative metabolic heat perfusing the muscle heat system the body. The is The from to core and .skin integrated 1970) where (Hardy, when rise, muscle in & initiated occurs primary located are (Hellon, thus body and increased the coming signals equilibrates with throughout and temperature to the metabolism) Rowell, vasodilation muscle and warmed blood returns excess thermal feedback causes drive hypothalamus of regulatory receptors Johnson, control constrictor tone, of sweating lesser a of vasodilation). both the • sununarized that the complex interaction a (body temperature, systems active vasodilation in addition to tone vasomotor cutaneous blood temperature, distributes hypothalamus is |
