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ICSE Class 10 Answered

why blood in arteries flow with jerks and is under pressure  
Asked by pxprasad1973 | 06 Jan, 2018, 07:12: PM
answered-by-expert Expert Answer
Blood in arteries moves because of the pressure of blood from the heart. Each time the heart pumps, it pushes the blood a little further. Veins do not rely on the heart to move blood. Veins have a system of valves to keep the blood from not moving backward, and muscles contract the veins to move the blood

 

Answered by Sivanand Patnaik | 07 Jan, 2018, 08:58: AM

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