Number of cranial nerves in a reptiles is:-

Options

A. 8- pairs
B. 10- pairs
C. 12- pairs
D. 14- pairs

Answer

To determine the number of cranial nerves in reptiles, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Cranial Nerves**: Cranial nerves are nerves that emerge directly from the brain and brainstem, and they primarily carry sensory and motor information to and from the head and neck.

2. **Identify the Number of Cranial Nerves in Higher Vertebrates**: In higher vertebrates, which include reptiles, birds, and mammals, there are a total of 12 pairs of cranial nerves.

3. **List the 12 Pairs of Cranial Nerves**: The 12 pairs of cranial nerves are:
- Olfactory (Cranial Nerve I)
- Optic (Cranial Nerve II)
- Oculomotor (Cranial Nerve III)
- Trochlear (Cranial Nerve IV)
- Trigeminal (Cranial Nerve V)
- Abducens (Cranial Nerve VI)
- Facial (Cranial Nerve VII)
- Vestibulocochlear (Cranial Nerve VIII)
- Glossopharyngeal (Cranial Nerve IX)
- Vagus (Cranial Nerve X)
- Accessory (Cranial Nerve XI)
- Hypoglossal (Cranial Nerve XII)

4. **Conclude the Number of Cranial Nerves in Reptiles**: Since reptiles are classified as higher vertebrates, they also possess 12 pairs of cranial nerves.

### Final Answer:
The number of cranial nerves in reptiles is 12 pairs.

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