The plasma membrane of the muscle fibre is called

Options

A. Sarcoplasma
B. Sarcolemma
C. Sarcoplasmic Reticulum
D. Syncytial

Answer

To answer the question "The plasma membrane of the muscle fibre is called," follow these steps:

1. **Identify the Structure**: Understand that the question is asking about the plasma membrane specifically in the context of muscle fibers. Muscle fibers are specialized cells that have unique structures.

2. **Define Muscle Fiber**: Recognize that muscle fibers are cylindrical or tubular in shape. This shape is important for their function in contraction and movement.

3. **Name the Plasma Membrane**: The plasma membrane of muscle fibers has a specific name. In muscle physiology, the plasma membrane is referred to as the "sarcolemma."

4. **Break Down the Term**: The term "sarcolemma" can be broken down into two parts: "sarco-" which means muscle, and "-lemma" which means membrane. This helps in understanding why the plasma membrane of muscle fibers is called sarcolemma.

5. **Select the Correct Option**: Given the options, the correct answer to the question is "sarcolemma," which is option B. Other options like sarcoplasm and sarcoplasmic reticulum refer to different components of muscle cells and are incorrect in this context.

### Final Answer:
The plasma membrane of the muscle fibre is called the **sarcolemma**.

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