What are the supply and demand of important tissues

Brain → constant supply , intolerant of interruptions Heart → requires increase during exercise , intolerant of interruptions Kidneys → requires high constant flow, intolerant of interruptions Gut → requires more during digestion and is tolerant of short term interruptions Skeletal muscle → requires more during exercise and is tolerant of short term interruptions Skin → not metabolically active but can increase for thermoregulation