The pressure in veins bringing blood back to the heart is known as:

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Study the AQA A Level PE Test for The Cardiovascular System. Prepare with flashcards and multiple choice questions, each with explanations. Get ready for exam success!

Multiple Choice

The pressure in veins bringing blood back to the heart is known as:

Explanation:
The key idea is the pressure in the system that carries blood back to the heart. This pressure is venous pressure, and the standard label for it is Pv. It’s a low-pressure component of the circulatory system that reflects venous return and helps set the preload on the heart. Right atrial pressure (Pra) is the pressure inside the heart chamber itself, not the pressure in the veins as they approach the heart, so it’s a different measurement. Plasma is simply the liquid part of blood, not a pressure value. So the best answer is Venous Pressure (Pv).

The key idea is the pressure in the system that carries blood back to the heart. This pressure is venous pressure, and the standard label for it is Pv. It’s a low-pressure component of the circulatory system that reflects venous return and helps set the preload on the heart. Right atrial pressure (Pra) is the pressure inside the heart chamber itself, not the pressure in the veins as they approach the heart, so it’s a different measurement. Plasma is simply the liquid part of blood, not a pressure value. So the best answer is Venous Pressure (Pv).

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