A person breathes in some volume of air by forced inspiration after having a forced expiration. This quantity of air taken in is

Options

A. tetai lung capacity
B. tidal volume
C. Vital capacity
D. inspiratory capacity

Explanation

To solve the question regarding the volume of air a person breathes in by forced inspiration after a forced expiration, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concepts**:
- **Forced Inspiration**: This is the act of inhaling deeply and forcefully.
- **Forced Expiration**: This is the act of exhaling forcefully.

2. **Identify Relevant Terms**:
- **Vital Capacity (VC)**: This is the maximum amount of air a person can forcibly exhale after a maximum inhalation. It represents the total volume of air that can be exchanged during forced breathing.
- **Tidal Volume (TV)**: This is the amount of air inhaled or exhaled during normal breathing.
- **Total Lung Capacity (TLC)**: This is the total volume of air in the lungs after maximum inhalation.
- **Inspiratory Capacity (IC)**: This is the maximum amount of air that can be inhaled after a normal expiration.

3. **Apply the Concepts**:
- After a forced expiration, the maximum volume of air that can be inhaled is referred to as the **Vital Capacity**. This is because it encompasses the air that can be inhaled after exhaling as much as possible.

4. **Conclusion**:
- Therefore, the quantity of air taken in by forced inspiration after a forced expiration is the **Vital Capacity**.

### Final Answer:
The quantity of air taken in by forced inspiration after a forced expiration is **Vital Capacity**.

---