Question 3 of 20 What helps the movement of blood in veins? Select the correct response: The decrease of thoracic pressure and increase of abdominal pressure due to diaphragm movement. The contraction and relaxation of skeletal muscles. All of the above. Valves in the veins. 1 Point
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Step 1: The movement of blood in veins is aided by the decrease of thoracic pressure and increase of abdominal pressure due to diaphragm movement. Show more…
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