Detailed Explanation on Instagram: "Follow @detailedexplanation to learn something new every day! 🧠 When you raise your arms, the veins in your hands and arms have to work against gravity to return blood to the heart. Unlike arteries, veins don’t have strong muscular walls to push blood forward, so they rely on a combination of valves and external forces. Tiny one-way valves inside the veins stop blood from flowing backward, while the contraction of nearby muscles squeezes the veins and helps p
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Detailed Explanation on Instagram: "Follow @detailedexplanation to learn something new every day! 🧠 When you raise your arms, the veins in your hands and arms
The intricate process of blood circulation is a vital function of the human body. When arms are raised, veins face the challenge of working against gravity to return blood to the heart. To overcome this, veins rely on a combination of one-way valves, muscle contractions, and breathing pressure to maintain blood flow. This complex interplay ...
135K views1 week ago
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