Question

at rest, what percentage of blood volume is within the heart? enter your answer as a number without symbols

Explanation:

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<reasoning>

Identify blood distribution at rest

At rest, the systemic veins and venules hold the largest portion of blood volume (about 64%). The systemic arteries hold about 13%, systemic capillaries hold about 7%, the pulmonary circulation holds about 9%, and the heart holds approximately 12% of the total blood volume. This distribution is a key aspect of Blood Distribution in human physiology.

Determine the percentage in the heart

Standard human anatomy and physiology textbooks (such as Marieb or Saladin) state that at rest, the heart contains approximately 12% of the total blood volume.
</reasoning>

<answer>
At rest, what percentage of blood volume is within the heart? Enter your answer as a number without symbols <blank>12</blank>
</answer>

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Answer:

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<reasoning>

Identify blood distribution at rest

At rest, the systemic veins and venules hold the largest portion of blood volume (about 64%). The systemic arteries hold about 13%, systemic capillaries hold about 7%, the pulmonary circulation holds about 9%, and the heart holds approximately 12% of the total blood volume. This distribution is a key aspect of Blood Distribution in human physiology.

Determine the percentage in the heart

Standard human anatomy and physiology textbooks (such as Marieb or Saladin) state that at rest, the heart contains approximately 12% of the total blood volume.
</reasoning>

<answer>
At rest, what percentage of blood volume is within the heart? Enter your answer as a number without symbols <blank>12</blank>
</answer>

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"Natural Science",
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