Cranial Nerve: Inveration

Question 1

Olfactory Nasal Mucosa (NOSE)

Answer 1

I Olfactory

Question 2

Retina (EYES)

Answer 2

II Optic

Question 3

1. Sup, Med, Inf Recti and Inf. Oblique Eye Muscles
2. via Ciliary Ganglion to Sphincter Pupillae & Ciliary Muscles

Answer 3

III Oculomotor

Question 4

Sup. Oblique Eye Muscle (SO4)

Answer 4

IV Trochlear

Question 5

Skin of Upper Face

Answer 5

V1 Ophtalmic

Question 6

Skin of Mid Face, Nasal & Palate Mucosa, Upper Teeth and Gums

Answer 6

V2 Maxillary

Question 7

1. Muscles of mastication, Ant. Belly of Digastric, Mylohyoid, Tensor Tympani, & Tensor Palatini (Arch 1 muscles)
2. Skin of Lower Face, Mucosa of ant. 2/3 of tongue, floor of mouth, lower teeth & Gums, Ext. Ear

Answer 7

V3 Mandibular

Question 8

Lat. Rectus Eye Muscle (LR6)

Answer 8

VI Abducens

Question 9

1. Muscle of Facial expression, Post. Belly of Diga stric, Stylohyoid, Stapedius (Arch 2)
2. Skin of Small Part of Ear
3. Ant. 2/3 of Tongue
4. via Pterygopalatine ganglion to glands in nasal mucosa & palatine/lacrimal glan ds AND via submandibular ganglion to submandibular/sublingual glands & labial, bucca l, lingual glands

Answer 9

VII Facial

Question 10

Semicircular canals, utricle, saccule (gravity, acc eleration, deceleraton) cochlea (hearing)

Answer 10

VIII Vestibulocochlear

Question 11

1. Stylopharyngeus Muscle (Arch 3)

2 (Somatic) Skin of Small Part of Ext. Ear

2 (Visceral) Mucosa of post. tongue, tonsil, middle ear, nasopharynx, oropharynx, carotid sinus/body

3. Post. 1/3 of tongue
4. Via Otic Ganglion to Parotid Gland

Answer 11

IX Glossopharyngeal

Question 12

1(a). Mucosa of Pharynx, Larynx, Trachea, Esophagus & Thoracic/Abdominal Viscera (Arch 6)

1(b). Levator Palati, Musculus, Uvulae, Palatogloss us, Pharyngeal Constrictors, Int. Laryngeal muscles (Arch 4, From Cranial Root of CN XI)

2. Skin of Small Part of Ear
3. Epiglottis
4. Via postganglionic neurons to glands & smooth muscle of thoracic/abdominal vi scera

Answer 12

X Vagus

Question 13

Sternomastohyoid Muscle Trapezius Muscle

Answer 13

XI Spinal Accessory

Question 14

Intrinsic/Extrinsic Muscles of Tongue (NOT palatoglossus)

Answer 14

XII Hypoglossal