Marking ! marking someone anyone me i've been posting this and no one is or has me yet venus return identify and explain the different mechanisms used by the body to enable venous return provide four mechanism terms and explanations for the terms

1. Respiratory Pump : During inspiration and expiration a pressure difference is formed between the thoracic capacity and abdominal capacity forcing blood back to the heart

2. Gravity : drains head and neck; increases when limbs are flat or elevated, helps blood in the upper body return to the heart

3. Muscle Pump: Contracts during exercise, compressing veins located between them

4. Smooth Muscle: Layer within the vein wall that venoconstricts to aid in the movement of blood

Hope this helps!

answer; indirect elisa;

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hope this and can i get bainliest my dude : d