In a man, abducens nerve is injured. Which one of the following functions will be affected ?

Options

A. Movement of the eyeball
B. Movement of the tongue
C. Swallowing
D. Movement of the neck

Explanation

**Step-by-Step Solution:**

1. **Identify the Nerve**: The abducens nerve is the 6th cranial nerve, primarily responsible for controlling the lateral movement of the eyeball.

2. **Understand the Function**: The main function of the abducens nerve is to innervate the lateral rectus muscle of the eye, which allows for the outward movement of the eyeball.

3. **Consider the Impact of Injury**: If the abducens nerve is injured, the function it controls will be impaired. This means that the movement of the eyeball, particularly the ability to move it laterally (to the side), will be affected.

4. **Evaluate the Options**: Given the options provided, we need to determine which function is directly related to the abducens nerve. The movement of the eyeball is the only option that correlates with the function of the abducens nerve.

5. **Conclusion**: Therefore, if the abducens nerve is injured, the function that will be affected is the movement of the eyeball.

**Final Answer**: The movement of the eyeball will be affected.

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