Volume of air inspired or expired duing normal resting state is

Options

A. 500 ml
B. 300 ml
C. 150 ml
D. 115 ml

Answer

To solve the question about the volume of air inspired or expired during normal resting state, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- Define inspiration and expiration.
- Inspiration is the process of drawing air into the lungs, while expiration is the process of releasing air from the lungs.

2. **Identify the Context**:
- The question specifies "normal resting state," which indicates that we are looking for the volume of air exchanged during regular, unforced breathing.

3. **Define Tidal Volume**:
- The volume of air inspired or expired during normal respiration is known as tidal volume.

4. **Know the Value of Tidal Volume**:
- The typical tidal volume for a healthy adult at rest is approximately 500 ml.

5. **Select the Correct Option**:
- Given the options:
- A) 500 ml
- B) 300 ml
- C) 150 ml
- D) 115 ml
- The correct answer is A) 500 ml.

### Final Answer:
The volume of air inspired or expired during normal resting state is **500 ml**.

---