Name the different stimuli that cause excitation of muscle fibre .

Explanation

**Step-by-Step Solution:**

1. **Understanding Muscle Fibers**: Muscle fibers are specialized tissues in the body responsible for contraction and relaxation, which facilitate movement and locomotion.

2. **Role of Central Nervous System (CNS)**: The contraction of skeletal muscles (striated muscles) is primarily controlled by the central nervous system. The CNS sends signals in the form of nerve impulses to initiate muscle contraction.

3. **Stimuli Leading to Nerve Impulse**: Various external stimuli can trigger the CNS to send these nerve impulses. The main types of stimuli that cause excitation of muscle fibers include:
- **Mechanical Stimuli**: This includes physical contact or pressure, such as when someone touches your skin or when an object comes into contact with your body.
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