Minute Volume of Respiration (MVR) in a person
can be defined as

Options

A. Tidal volume `xx` Breathing rate
B. (Tidal volume - Anatomic dead space) `xx`
Brathind rate
C. Vital capacity `div` Breathing rate
D. Vital capacity `div` Tidal volume

Answer

**Step-by-Step Solution:**

1. **Understanding Minute Volume of Respiration (MVR)**:
- Minute Volume of Respiration (MVR) is defined as the total volume of air that is inhaled and exhaled by a person in one minute.

2. **Components of MVR**:
- MVR can be calculated using two main components:
- **Tidal Volume (TV)**: This is the amount of air inhaled or exhaled during a normal breath (one respiration cycle).
- **Breathing Rate (BR)**: This is the number of breaths taken per minute.

3. **Formula for MVR**:
- The formula to calculate MVR is:
\[ \text{MVR} = \text{Tidal Volume} \times \text{Breathing Rate} \]

4. **Example Calculation**:
- For a healthy individual, the tidal volume is typically around 500 ml, and the breathing rate is approximately 12 to 16 breaths per minute.
- If we take an average breathing rate of 15 breaths per minute, the calculation would be:
\[ \text{MVR} = 500 \, \text{ml} \times 15 \, \text{breaths/min} = 7500 \, \text{ml/min} \, \text{or} \, 7.5 \, \text{liters/min} \]

5. **Identifying the Correct Option**:
- Given the options:
- A) Tidal volume multiplied by breathing rate
- B) Tidal volume minus anatomic dead space multiplied by breathing rate
- C) Vital capacity divided by breathing rate
- D) Vital capacity divided by tidal volume
- The correct option that defines MVR is **A) Tidal volume multiplied by breathing rate**.