Which one of the following transmits impulses to central nervous system ?

Options

A. Abducens nerve
B. Trochlear nerve
C. Oculomotor nerve
D. Auditory nerve

Explanation

To solve the question "Which one of the following transmits impulses to the central nervous system?", we can follow these steps:

### Step 1: Understand the Types of Neurons
- Neurons are classified into two main types based on the direction of impulse transmission:
- **Sensory Neurons**: These neurons carry impulses from sensory receptors (like skin, eyes, ears) to the central nervous system (CNS).
- **Motor Neurons**: These neurons carry impulses from the central nervous system to effector organs (like muscles and glands).

### Step 2: Identify the Given Options
- The question provides several options, which include:
- Abducens nerve
- Trochlear nerve
- Oculomotor nerve
- Auditory nerve

### Step 3: Analyze Each Option
- **Abducens Nerve**: This is a motor nerve that controls eye movement. It transmits impulses from the CNS to the muscles.
- **Trochlear Nerve**: This is also a motor nerve involved in eye movement, transmitting impulses from the CNS to the muscles.
- **Oculomotor Nerve**: This is another motor nerve that controls eye muscles and also transmits impulses from the CNS to the muscles.
- **Auditory Nerve**: This is a sensory nerve that carries auditory information from the inner ear to the central nervous system.

### Step 4: Determine the Correct Answer
- Since the question asks for the nerve that transmits impulses **to** the central nervous system, we need to identify the sensory nerve among the options.
- The **auditory nerve** is the only sensory nerve listed, as it carries impulses from the auditory receptors in the ear to the central nervous system.

### Conclusion
- Therefore, the correct answer is **Auditory Nerve** (Option 4).

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