The cranial nerve involved in chewing of food is the

Options

A. Accessory spinal
B. Trochlear
C. Abducent
D. Trigeminal

Answer

To answer the question regarding which cranial nerve is involved in the chewing of food, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the cranial nerve that is specifically involved in the process of chewing food.

2. **Identify the Options**: The options provided are:
- A) Accessory spinal
- B) Trochlear
- C) Abducens
- D) Trigeminal

3. **Analyze Each Option**:
- **Option A: Accessory spinal**: This nerve is primarily responsible for the movement of neck muscles. It does not play a role in chewing. Thus, this option is incorrect.
- **Option B: Trochlear**: The trochlear nerve is involved in the motor supply to the oblique muscle of the eye. It does not have any function related to chewing. Therefore, this option is also incorrect.
- **Option C: Abducens**: The abducens nerve controls the movement of the lateral rectus muscle of the eye. It is not involved in chewing, making this option incorrect as well.
- **Option D: Trigeminal**: The trigeminal nerve is the fifth cranial nerve and is responsible for both sensory and motor functions. It plays a crucial role in the chewing process as it innervates the muscles of mastication (chewing). Therefore, this option is correct.

4. **Conclusion**: The cranial nerve involved in chewing of food is the **trigeminal nerve** (Option D).

### Final Answer:
The cranial nerve involved in chewing of food is the **trigeminal nerve**.

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