Wright's Wicked Facts #1

Question 1

Cribiform Plate

Answer 1

CN I

Question 2

Jugular Foramen

Answer 2

CN IX, X, XI

Question 3

Superior Orbital Fissure

Answer 3

CN III, IV, V (V 1), VI

Question 4

Foramen Rotundum

Answer 4

CN V (V2)

Question 5

Optic Canal

Answer 5

CN II

Question 6

Internal Acoustic Meatus

Answer 6

CN VII, VIII

Question 7

Hypoglossal Canal

Answer 7

CN XII

Question 8

What is the one sympathetic N we should know? What does it form?

Answer 8

1. Deep Petrosal N. (from internal carotid plexus)

2. Joins with branches of CN VII to form the N. of Pterygoid Canal

Question 9

Three divisions of CN V

Answer 9

V1 - Ophthalamic - lacrimal, short ciliary
V2 - Maxillary - zygomatic, nasociliary, greater/less palatine, posterior superior nasal
V3 - Mandibular - lingual, auriculotemporal

Question 10

Glossopharyngeal N.

1. Nuclei
2. Ganglion
3. Action

Answer 10

1. Inferior salivary nucleus + nucleus ambiguus
2. Otic
3. innervates parotid gland, controls BVs in carotid body, BP in carotid sinus

Question 11

Vagus N.

1. Nuclei
2. Ganglion
3. Action

Answer 11

1. nucleus ambiguus + dorsal vagal motor nucleus
2. not for parasympathetic
3. innervate SM, stimulate glands of pharynx, larynx, +thoracic/abdominal viscera, cardiac m., aortic bodies

Question 12

Facial N.

1. Nuclei
2. Ganglion
3. Action

Answer 12

1. Superior Salivatory nuclues
2. Pterygopalatine + submandibular
3. stimulate lacrimal, submandibular, + sublingual glands, oral, nasal, + pharyngeal mucosal glands

Question 13

Oculomotor N.

1. Nuclei
2. Ganglion
3. Action

Answer 13

1. Edinger-westphal
2. Ciliary
3. innervates constrictor pupillae + ciliary muscles

*does synapse in ciliary ganglion even though it is para

Question 14

Foramen Ovale

Answer 14

CN V (V3)