during exercise in a hot environment the vascular beds which recive the most blood are the muscles and the skin

blood flow during Exercise

Because of water loss during exercise, an individual will experience a decrease in venous return. This will cause cardiovascular drift. Hr will increase for a given submax exercise intensity

THe kidney and splanchnic (abdominal organ) circulations are deprived of normal blood flow during exercise

Difference between the oxygen content of the arteries and veins: (a-v) 02 difference

Describes the relationship between metabolism and cardiovascular function

Fick principle :
cardiac output (Q) X (a-v) o2 difference =vo2