Skeletal muscle pump

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Skeletal Muscle Pump

The Skeletal Muscle Pump is a collection of muscles in the lower extremities that aid in blood circulation. It is a crucial component of the cardiovascular system, particularly in counteracting the effects of gravity when an individual is standing.

Function[edit | edit source]

The primary function of the skeletal muscle pump is to facilitate the return of blood from the lower extremities back to the heart. This is achieved through a process known as venous return, which is the rate of blood flow back to the heart. The skeletal muscle pump assists in this process by compressing the veins in the legs, which propels the blood upwards.

Mechanism[edit | edit source]

The skeletal muscle pump operates through a mechanism known as the "muscle pump action". When the muscles in the legs contract, the veins located within them are compressed. This compression forces the blood within these veins upwards, against the force of gravity. When the muscles relax, the veins refill with blood. This cycle of contraction and relaxation effectively pumps the blood back towards the heart.

Clinical Significance[edit | edit source]

The skeletal muscle pump plays a significant role in preventing venous insufficiency and venous stasis, conditions characterized by inadequate return of blood from the lower extremities. It is also important in the prevention of deep vein thrombosis (DVT), a serious condition that can occur when blood flow decreases and coagulates in the veins, forming a clot.

See Also[edit | edit source]

References[edit | edit source]


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Skeletal muscle pump[edit | edit source]

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