A single isolation of muscle fibre is known as

Options

A. Twitch
B. Tetany
C. Cramp
D. Muscle tone

Answer

To solve the question "A single isolation of muscle fibre is known as," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the term used to describe a single isolated muscle fiber.

2. **Identifying Key Terms**: The key terms here are "single isolation" and "muscle fiber."

3. **Reviewing Muscle Physiology**: In muscle physiology, a single muscle fiber can contract in response to stimulation, and this contraction is often referred to in specific terms.

4. **Considering the Options**: The options provided in the video transcript include:
- Twitch
- Tetany
- Cramp
- Muscle tone

5. **Analyzing Each Option**:
- **Twitch**: This refers to a single contraction of a muscle fiber in response to a stimulus. It is the correct term for an isolated muscle fiber's response.
- **Tetany**: This is a condition characterized by prolonged muscle contraction and is not related to a single muscle fiber.
- **Cramp**: This refers to a painful involuntary contraction of a muscle, not specifically an isolated fiber.
- **Muscle Tone**: This refers to the continuous and passive partial contraction of the muscles, not a single contraction.

6. **Conclusion**: Based on the analysis, the correct answer is "Twitch," which is the term used to describe a single isolation of muscle fiber.

### Final Answer:
A single isolation of muscle fibre is known as a **Twitch**.

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