Movement of tongue muscle is controlled by

Options

A. Facial nerve
B. Trigeminal nerve
C. Hypoglossal nerve
D. Vagus nerve

Answer

### Step-by-Step Solution:

1. **Identify the Question**: The question asks which nerve controls the movement of the tongue muscle.

2. **Understand the Options**: The options given are:
- A) Facial nerve
- B) Trigeminal nerve
- C) Hypoglossal nerve
- D) Vagus nerve

3. **Analyze Each Nerve**:
- **Facial Nerve**: This is the 7th cranial nerve. It is a mixed nerve (both motor and sensory) primarily responsible for controlling facial movements and expressions. Therefore, it does not control tongue movement.

- **Trigeminal Nerve**: This is the 5th cranial nerve. It is also a mixed nerve, responsible for sensation in the face and controlling biting and chewing reflexes. It does not control the movement of the tongue.

- **Hypoglossal Nerve**: This is the 12th cranial nerve and is a motor nerve. Its primary function is to control the muscles of the tongue, making it responsible for tongue movement.

- **Vagus Nerve**: This is the 10th cranial nerve and is the longest cranial nerve. It is a mixed nerve involved in various functions, including sensation from visceral organs and regulating parasympathetic activities, but it does not control tongue movement.

4. **Conclusion**: After analyzing all the options, the only nerve that specifically controls the movement of the tongue muscle is the **Hypoglossal Nerve** (Option C).

5. **Final Answer**: The movement of tongue muscle is controlled by the **Hypoglossal Nerve**.