Which match is incorrect

Options

A. inspiratory t.v + irv 3500
B. vital capacity erv+irv +rv 5000
C. functional residual capacity erv + rv 2200
D. expiratory capacity tv+ erv 1500

Answer

To solve the question "Which match is incorrect?" regarding the definitions and values of respiratory volumes, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Understand the Terms:**
- **Tidal Volume (TV):** The amount of air inhaled or exhaled during normal breathing (approximately 500 ml).
- **Inspiratory Reserve Volume (IRV):** The additional amount of air that can be inhaled after a normal inhalation (approximately 3000 ml).
- **Expiratory Reserve Volume (ERV):** The additional amount of air that can be forcibly exhaled after a normal exhalation (approximately 1100 ml).
- **Residual Volume (RV):** The amount of air remaining in the lungs after a forced exhalation (approximately 1200 ml).
- **Inspiratory Capacity (IC):** The maximum amount of air that can be inhaled after a normal expiration (IC = TV + IRV).
- **Vital Capacity (VC):** The maximum amount of air that can be exhaled after a maximum inhalation (VC = TV + IRV + ERV).
- **Functional Residual Capacity (FRC):** The amount of air remaining in the lungs after a normal expiration (FRC = RV + ERV).
- **Expiratory Capacity (EC):** The maximum amount of air that can be exhaled after a normal inhalation (EC = TV + ERV).

2. **Analyze Each Option:**
- **Option A: Inspiratory Capacity**
- Formula: IC = TV + IRV = 500 ml + 3000 ml = 3500 ml (approx.)
- Given: 3500 ml
- **Match:** Correct.

- **Option B: Vital Capacity**
- Formula: VC = TV + IRV + ERV = 500 ml + 3000 ml + 1100 ml = 4600 ml.
- Given: Includes RV, which is incorrect.
- **Match:** Incorrect (should not include RV).

- **Option C: Functional Residual Capacity**
- Formula: FRC = RV + ERV = 1200 ml + 1100 ml = 2300 ml (approx.)
- Given: 2200 ml
- **Match:** Approximately correct, but slightly off.

- **Option D: Expiratory Capacity**
- Formula: EC = TV + ERV = 500 ml + 1100 ml = 1600 ml.
- Given: 1500 ml
- **Match:** Approximately correct.

3. **Conclusion:**
- The only option that is definitively incorrect is **Option B: Vital Capacity**, as it incorrectly includes the residual volume in its definition.

### Final Answer:
**The incorrect match is Option B: Vital Capacity.**

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