Sarcomere is the area between two

Options

A. H zones
B. Z lines
C. A bands
D. I bands

Answer

To answer the question "Sarcomere is the area between two...", we need to identify what defines a sarcomere in muscle tissue.

### Step-by-Step Solution:

1. **Understanding Sarcomere**: A sarcomere is the basic structural and functional unit of muscle tissue. It is responsible for muscle contraction and is organized in a repeating pattern along the length of the muscle fiber.

2. **Identifying Components of Sarcomere**: The sarcomere is defined by specific structures:
- **Z-Lines**: These are the boundaries of a sarcomere. Each sarcomere is flanked by two Z-lines.
- **A-Bands**: These are the dark bands within the sarcomere where myosin (thick filaments) and actin (thin filaments) overlap.
- **I-Bands**: These are the light bands that contain only actin filaments and are located on either side of the Z-line.
- **H-Zone**: This is the central part of the A-band where there is no overlap of actin filaments.

3. **Defining the Sarcomere's Boundaries**: The distance between two adjacent Z-lines is what constitutes one sarcomere. Therefore, the sarcomere is the area between two Z-lines.

4. **Conclusion**: Based on the definitions and the structure of the sarcomere, the correct answer to the question is that the sarcomere is the area between two **Z-Lines**.

### Final Answer:
The sarcomere is the area between two **Z-Lines**.

---