What is the 12 cranial nerves and functions?

Table: Overview of the 12 cranial nerves (CNs)

Nerve CN Type
Olfactory I Sensory Nervous System: Histology
Optic II Sensory Nervous System: Histology
Oculomotor III Motor Nervous System: Histology
Trochlear IV Motor Nervous System: Histology

What is the 12 cranial nerves?

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 …

How are cranial nerves numbered?

The numbering of the cranial nerves is based on the order in which they emerge from the brain and brainstem, from front to back. The terminal nerves (0), olfactory nerves (I) and optic nerves (II) emerge from the cerebrum, and the remaining ten pairs arise from the brainstem, which is the lower part of the brain.

Which cranial nerve is not really a cranial nerve?

With the exception of the olfactory nerve (I) and optic nerve (II), the cranial nerves emerge from the brainstem.

Which is the thinnest cranial nerve?

Trochlear nerve is the smallest cranial nerve.

What is the easiest way to learn cranial nerves?

What is the easiest way to learn cranial nerves? An easy way to remember cranial nerves is to craft a mnemonic device that helps you remember the cranial nerves in order. One common example is, “Ooh, ooh, ooh to touch and feel very good velvet. Which of the cranial nerves are sensory only? Cranial Nerves.

How to remember the 12 cranial nerves?

Oily Oranges On Tower Tickle Ants Funnily And Give Velvety Angry Hands

  • Only Oranges On Tilting Towers Are Fun And Give Very Awkward Holes
  • Oh Oh Oh Tiny Tits Are Fun And Give Virgins Awkward Hips
  • Oh Oh Oh Time Traveler Again Fool Angry Gods Victory Are His
  • Oh Oh Oh To Tickle A Female’s Vagina Gave Victor A Hard-on
  • How do you remember the 12 cranial nerves mnemonics?

    Olfactory Nerve – Sensory. The olfactory nerve processes information related to smell.

  • Optic Nerve – Sensory.
  • Oculomotor nerve – Motor.
  • Trochlear nerve – Motor.
  • Trigeminal nerve – Mixed.
  • Abducens nerve – Motor.
  • Facial Nerve – Mixed.
  • Vestibulocochlear nerve – Sensory.
  • Glossopharyngeal nerve – Mixed.
  • Vagus nerve – Mixed.
  • How to remember the cranial nerves mnemonic?

    Watch my teaching video (below) on how to remember them

  • Take the Quiz on Cranial Nerves
  • Memorize the illustration of the cranial nerves below
  • Print off this article for reference