The volume of a that can be breathed in by maximum forced inspiration over and above the normal inspiration is called

Options

A. expiratory reserve volume
B. inspiratory reserve volume
C. vital capacity
D. inspiratory capacity

Answer

To solve the question "The volume of air that can be breathed in by maximum forced inspiration over and above the normal inspiration is called," we need to analyze the options provided and understand the definitions of each term related to lung volumes.

### Step-by-Step Solution:

1. **Understanding the Question**:
- The question asks for the volume of air that can be inhaled forcefully after a normal inspiration. This means we are looking for a specific lung volume that represents an additional intake of air beyond the usual breathing.

2. **Identifying the Options**:
- The options given are:
A) Expiratory Reserve Volume (ERV)
B) Expiratory Reserve Volume (ERV)
C) Vital Capacity (VC)
D) Inspiratory Capacity (IC)

3. **Analyzing Each Option**:
- **A) Expiratory Reserve Volume (ERV)**: This refers to the amount of air that can be forcefully exhaled after a normal expiration. This does not match the requirement of the question.
- **B) Expiratory Reserve Volume (ERV)**: This is the same as option A, and it is still related to exhalation, not inhalation.
- **C) Vital Capacity (VC)**: This is the total volume of air that can be inhaled and exhaled with maximum effort. While it includes all lung volumes, it does not specifically refer to the volume breathed in after normal inspiration.
- **D) Inspiratory Capacity (IC)**: This refers to the maximum volume of air that can be inhaled after a normal expiration. This is the volume we are looking for because it includes the normal tidal volume plus the additional air that can be inhaled.

4. **Conclusion**:
- The correct answer is **D) Inspiratory Capacity (IC)**, as it represents the volume of air that can be inhaled after a normal breath, including the additional air taken in during maximum forced inspiration.

### Final Answer:
The volume of air that can be breathed in by maximum forced inspiration over and above the normal inspiration is called **Inspiratory Capacity (IC)**.