Thin connective tissue sheath that surrounds skeletal muscle fibre  

Options

A. perimysium
B. epimysium
C. endomysium
D. sarcolemma

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks for the name of the thin connective tissue sheath that surrounds skeletal muscle fibers.

2. **Identify the Options**: The options provided are:
- A) Perimysium
- B) Epimysium
- C) Endomysium
- D) Sarcolemma

3. **Define Each Term**:
- **Perimysium**: This is a connective tissue sheath that surrounds a bundle of muscle fibers (fascicles).
- **Epimysium**: This is the outermost layer of connective tissue that surrounds the entire skeletal muscle.
- **Endomysium**: This is a thin connective tissue layer that surrounds each individual muscle fiber.
- **Sarcolemma**: This is the plasma membrane of a muscle cell, which is not a connective tissue.

4. **Analyze the Definitions**: The question specifically asks for the thin connective tissue that surrounds skeletal muscle fibers. Among the options:
- The **perimysium** surrounds bundles of fibers, not individual fibers.
- The **epimysium** surrounds the entire muscle, which is not thin.
- The **endomysium** is the thin connective tissue that surrounds individual muscle fibers.
- The **sarcolemma** is not a connective tissue but a membrane.

5. **Select the Correct Answer**: Based on the definitions, the thin connective tissue sheath that surrounds skeletal muscle fibers is the **endomysium**.

**Final Answer**: C) Endomysium

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