Tissues are able to autoregulate their rate of blood flow by controlling

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Systemic vascular resistance is used to determine the resistance of vessels,diseases,or drug therapies that affect vessels.Any condition that increases vascular resistance requires more work for the heart to overcome the resistance and eject blood volume.Blood moves from an area of higher pressure to an area of lower pressure.The arterial and arteriolar walls with their muscular media coats provide the high-pressure end of the gradient.Seeking a lower pressure,blood moves toward the venous system.The thinner,more pliable walls of the venous bed furnish the low-pressure portion of the pressure gradient.

Tissues Are Able to Autoregulate Their Rate of Blood Flow