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SlideshowReport

Skeletal Muscle Pump

Description
Vascular Resistance (R)

R is the opposition to blood flow due to friction between blood and the walls of blood vessels
The higher the R, the smaller the blood flow
R depends on:
Size of the blood vessel lumen
Blood viscosity
Total blood vessel length

Venous return, the volume of blood flowing back to the heart through the systemic veins, occurs due to the pressure generated by contractions of the heart’s left ventricle
Venous return is assisted by:
Valves
Respiratory pump
Skeletal muscle pump

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