Amount of air expelled from the lungs during the quiet breathing per one minute is

Options

A. 500 mL
B. 6000-8000 mL
C. 2,500 mL to 3000 mL
D. 1000 - 1100 mL

Answer

To find the amount of air expelled from the lungs during quiet breathing per minute, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Tidal Volume**:
- Tidal volume is the amount of air that is inhaled or exhaled during normal, quiet breathing. It is typically around 500 ml per breath.

2. **Determine Breathing Rate**:
- The average breathing rate for a healthy adult at rest is approximately 12 to 14 breaths per minute.

3. **Calculate Air Expelled in One Minute**:
- To find the total amount of air expelled in one minute, multiply the tidal volume by the number of breaths taken per minute.
- Using the average values:
- For 12 breaths per minute:
\[ \text{Total air expelled} = 500 \, \text{ml/breath} \times 12 \, \text{breaths/min} = 6000 \, \text{ml} \]
- For 14 breaths per minute:
\[ \text{Total air expelled} = 500 \, \text{ml/breath} \times 14 \, \text{breaths/min} = 7000 \, \text{ml} \]

4. **Determine the Range**:
- Based on the calculations, the total amount of air expelled during quiet breathing in one minute ranges from 6000 ml to 8000 ml.

5. **Select the Correct Option**:
- Among the given options, the correct answer is **6000 to 8000 ml**.

### Final Answer:
The amount of air expelled from the lungs during quiet breathing per one minute is **6000 to 8000 ml**.

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