Question

Number of cranial nerve is mammals is?

• A. 10
• B. 12
• C. 24
• D. 8

Answer 1

The correct option is C 24

In higher vertebrates (reptiles, birds, mammals) there are 12 pairs or 24 of cranial nerves: olfactory (CN I), optic (CN II), oculomotor (CN III), trochlear (CN IV), trigeminal (CN V), abducent (or abducens; CN VI), facial (CN VII), vestibulocochlear (CN VIII), glossopharyngeal (CN IX), vagus (CN X), accessory (CN XI), and hypoglossal (CN XII).

So, the correct option is '24'.