Question

How many pairs of cranial nervesvare present in humans?

Answer 1

hey curious ^_^

12 ( twelve )

Each cranial nerve is paired and is present on both sides. Depending on definition in humans there are twelve or thirteen cranial nerves pairs, which are assigned Roman numerals I–XII, sometimes also including cranial nerve zero.

hope it helpz uh

Answer 2

Explanation:

Cranial nerve, in vertebrates, any of the paired nerves of the peripheral nervous system that connect the muscles and sense organs of the head and thoracic region directly to the brain.

In higher vertebrates (reptiles, birds, mammals) there are 12 pairs 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). Lower vertebrates (fishes, amphibians) have 10 pairs. A 13th pair, a plexus (branching network) known as the terminal nerve (CN 0), is sometimes also recognized in humans, though whether it is a vestigial structure or a functioning nerve is unclear