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6 July, 16:17

Which of the following prevents blood from flowing backward through the circulatory system?

Smooth muscle in the arteries

Smooth muscle in the veins

Valves in the arteries

Valves in the veins

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Answers (2)
  1. 6 July, 16:34
    0
    Answer: Valves in the veins

    Explanation: The flow of the blood inside the body takes place through the veins and arteries. The oxygenated blood from the heart is supplied to the different parts of the body.

    The blood flows from the capillaries to the venules and from there to the veins. The blood moves in the veins by the rhythmic movement of the smooth muscles in the body.

    Most of the blood moves against the gravity so there is a chance that it can backflow so to prevent this there are valves in the veins known as one way valves.
  2. 6 July, 16:37
    0
    C. Valves in the arteries
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