Cranial nerves

Question 1

CN I

Answer 1

Olfactory nerve.
S (SVA from olfactory epithelium)
Passes through cribriform plate

Question 2

CN II

Answer 2

Optic nerve.
S (SSA from the retina)
Passes through the Optic canal

Question 3

CN III

Answer 3

Oculomotor nerve.
M (GSE to levator palpebrae superioris, ventral oblique, and dorsal/medial/ventral rectus) (GVE - PS - to pupil - constrictor pupillae - via the ciliary ganglion).
Passes through the orbital fissure

Question 4

CN IV

Answer 4

Trochlear nerve.
M (GSE to dorsal oblique m.)
Passes through the orbital fissure

Question 5

CN V

Answer 5

Trigeminal nerve.
B
Ophthalmic branch (GSA to globe, periorbita, nasal mucosae, and medial aspect of the palpebrae)
Passes through: Orbital fissure

Maxillary branch (GSA to upper lip, nasal mucosae, lateral aspect of the palpebrae)
Passes through: Round foramen and rostral alar foramen. 

Mandibular branch (GSA to lower jaw, auriculotemporal area) (GSE to muscles of mastication)
Passes through: Oval foramen

Question 6

CN VI

Answer 6

Abducens nerve.
M (GSE to retractor bulbi m. and lateral rectus m.)
Passes through orbital fissure

Question 7

CN VII

Answer 7

Facial nerve.
B (GSE to mm. of facial expression) (SVA to tastebuds of rostral third of tongue) (GVE - PS - to salivary and lacrimal glands)
Passes through Stylomastoid foramen and internal acoustic meatus

Question 8

CN VIII

Answer 8

Vestibulocochlear nerve.
S (SSA for hearing and balance)
Passes through internal acoustic meatus

Question 9

CN IX

Answer 9

Glossopharyngeal nerve.
B (GVA/SVA from tongue and pharyngeal mucosa) (GSE to pharynx) (GVE - PS - to parotid and mucosal glands)
Passes through jugular foramen and tympanooccipital fissure.

Question 10

CN X

Answer 10

Vagus nerve.
B (GSE/GVE - PS - to pharynx and esophagus) (GVA/GVE - PS - to heart, lungs, abdomen) (GSA/GVE - PS - to ear canal and epiglottis)
Passes through jugular foramen and tympanooccipital fissure

Question 11

CN XI

Answer 11

(Spinal) Accessory nerve.
M (GSE to trapezius, omotransversarius, sternocephalicus, cleidocephalicus, and larynx via the recurrent laryngeal nerves)
Passes through jugular foramen and tympanooccipital foramen.

Question 12

CN XII

Answer 12

Hypoglossal nerve.
M (GSE to extrinsic and intrinsic muscles of the tongue)
Passes through hypoglossal canal.