Nerves

Question 1

Where do cranial nerves arise from?

Answer 1

I + II = cerebrum
III - XII = brainstem

Question 2

How many sets of cranial nerve pairs are there? (they mirror each other hence the pairs)

Answer 2

12

Question 3

What are these 3 foramina called?

Answer 3

1. Optic canal
2. Orbital fissure
3. Rostral alar foramen

Question 4

What are the names of the cranial nerves I-XII?

Hint=
OOOTTAFVGVAH

Answer 4

I = olfactory
II = optic
III = oculomotor
IV = trochlear
V = trigeminal*
VI = abducent
VII = facial
VIII = vestibulocochlear
IX = glossopharyngeal
X = vagus
XI = accessory
XII = hypoglossal nerve

• V1 Ophthalmic br
  V2 Maxillary br
  V3 Mandibular br

Question 5

What is the exit point for the cranial nerves?
(OOOTTAFVGVAH)

Answer 5

Olfactory - olfactory foramina
Optic - optic canal
Oculomotor - orbital fissure
Trochlear - orbital fissure
Trigeminal - V1, 2 and 3
Abducent - orbital fissure
Facial - Stylomastoid foramen
Vestibulocochlear - internal acoustic meatus
Glossopharyngeal - Jugular foramen
Vagus - Jugular foramen
Accessory - Jugular foramen
Hypoglossal nerve - Hypoglossal canal

Question 6

Identify where the cranial nerve are?

Answer 6

1. I olfactory
2. II optic
3. III oculomotor
4. IV trochlear
5. V trigeminal
6. VI abducent
7. VII facial
8. VIII vestibulocochlear
9. IX glossopharyngeal
10. X vagus
11. XI accessory
12. XII hypoglossal nerve