With respect to their function identify the odd one from the cranial nerve given below.

Options

A. Olfactory nerve
B. Optic nerve
C. Oculomotor nerve
D. Vestibulocochlear nerve

Answer

To solve the question of identifying the odd cranial nerve based on their functions, we will analyze the functions of each cranial nerve mentioned.

### Step 1: Identify the cranial nerves and their functions
1. **Olfactory Nerve (Cranial Nerve I)**: This nerve is responsible for the sense of smell.
2. **Optic Nerve (Cranial Nerve II)**: This nerve is responsible for vision, transmitting visual information from the retina to the brain.
3. **Oculomotor Nerve (Cranial Nerve III)**: This nerve controls most of the eye's movements, including pupil dilation and the movement of the eye.
4. **Vestibulo-Ocular Nerve (Cranial Nerve VIII)**: This nerve is involved in hearing and balance.

### Step 2: Compare their functions
- The **Olfactory**, **Optic**, and **Vestibulo-Ocular** nerves have specific sensory functions (smell, vision, and balance/hearing, respectively).
- The **Oculomotor Nerve**, while it does have a function related to eye movement, is primarily a motor nerve that controls the muscles around the eye, rather than being a sensory nerve.

### Step 3: Identify the odd one out
From the analysis, the **Oculomotor Nerve** is the odd one out because it primarily has a motor function related to eye movement, while the others are sensory nerves related to specific senses (smell, vision, and hearing/balance).

### Final Answer:
The odd cranial nerve with respect to its function is the **Oculomotor Nerve**.

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