Cranial nerves

Question 1

Use this phrase to remember 12 pairs of cranial nerves
“ On Old Olympus’ Towering Top, A Finn Van German Viewed A Hop”

Answer 1

I- Olfactory
II- Optic
III- Oculomotor
IV- Trochlear
V- Trigeminal
VI- Abducens
VII- FAcial
VIII- Vestibulocochlear
IX- Glossopharyngeal
X- Vagus
XI- Accessory
XII- Hypoglossal

Question 2

A phrase to remember the primary function of the nerves ( sensory; motor; Mixed (both))
“ Some Say Marry Money, But My Brother Says Big Brains Matter More”

Question 3

I- Olfactory nerve
Pathway from to the brain since it is a sensory nerve>

Answer 3

Olfactory neurons in the nasal cavities send tiny sensory nerve fibers through the cribriform plate of the ethmoid bone of the skull to synapse with neurons in the olfactory bulb. Fibers from the olfactory bulb neurons form the olfactory tract of the olfactory nerve, which runs to the primary olfactory cortex located at the temporal lobe of the brain.

Question 4

II- Optic nerve

Answer 4

Partial decussation happens at the optic chiasm. After decussation optic tracts

Question 5

Three nerves that control eye movement

Answer 5

III- Oculomotor
IV- Trochlear nerve
VI- Abducens

Question 6

Which muscle is innervated by trochlear nerve

Answer 6

Superior oblique
- abduct
depresses
- internally rotates

Question 7

Abducens cranial nerve VI

Answer 7

Lateral rectus

Question 8

Where does the v-trigeminal nerve originates and path?

Answer 8

Pons.
It branches to opthalmic, maxillary, mandibular

Question 9

where does VII facial nerve orifinate

Answer 9

pons
innervate muscles of facial expressions

Question 10

XI-glossopharyngeal nerve arises from

Answer 10

medulla
- also the vagus (X)

Question 11

Vagus nerve

Question 12

Glossopharyngeal nerve

Answer 12

Carotid body