In a typical healthy adult, approximately how many quarts of blood are in the human body?

• A. About 10 quarts
• B. About 5 quarts
• C. About 20 quarts
• D. About 1 quart

Answer: (B)

Verified step by step guidance

1. Understand that the problem is asking for the approximate volume of blood in a typical healthy adult human body.
2. Recall that the average adult human body contains about 5 liters of blood, which is a commonly accepted physiological fact.
3. Convert liters to quarts, knowing that 1 liter is approximately equal to 1.057 quarts.
4. Multiply the average blood volume in liters by the conversion factor to get the volume in quarts: \$5 \text{ liters} \times 1.057 \frac{\text{quarts}}{\text{liter}}$.
5. Interpret the result to find the closest approximate value in quarts, which is about 5 quarts.