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In a resting muscle,the central part of ...

In a resting muscle,the central part of thick filament in a sorcomere is not overlapped by thin filament.This central part is called

A

H - zone

B

Z - line

C

I - band

D

A - band

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The correct Answer is:
To solve the question regarding the central part of the thick filament in a sarcomere that is not overlapped by thin filament in a resting muscle, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Sarcomere Structure**: - A sarcomere is the basic functional unit of a muscle fiber. It is composed of thick and thin filaments. The thick filaments are primarily made of myosin, while the thin filaments are made of actin. 2. **Identifying Filament Arrangement**: - In a sarcomere, the thick filaments (myosin) and thin filaments (actin) are arranged in a specific pattern. The thick filaments are located in the center, while the thin filaments extend from the edges towards the center. 3. **Recognizing the Overlap**: - In a resting muscle, the thin filaments partially overlap the ends of the thick filaments. However, there is a central region of the thick filament that does not have any overlap with the thin filaments. 4. **Naming the Central Region**: - This central part of the thick filament that is not overlapped by the thin filament is specifically referred to as the **H zone**. 5. **Conclusion**: - Therefore, the answer to the question is that the central part of the thick filament in a sarcomere, which is not overlapped by thin filament in a resting muscle, is called the **H zone**. ### Final Answer: The central part of the thick filament in a sarcomere that is not overlapped by thin filament in a resting muscle is called the **H zone**.
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