Cranial Nerves And Components

Front 1

Olfactory

Back 1

SA (special sensory) for smell

Front 2

Optic

Back 2

SA (special sensory) for vision

Front 3

Occulomotor

Back 3

GSE (somatic motor)
-eye muscles (eyelids)
-eye balls except for 2 muscles
VSE (visceral motor) sphincter pupillae and ciliary

Front 4

Trochlear

Back 4

GSE superior oblique muscle

Front 5

Trigeminal

Back 5

GSA (somatic sensory)
-face
-anterior scalp

BE (somatic motor)
-masticulation
--Temporalis (V3)
--Masseter (V3)
--Lateral Pterygoid (V3)
--Medial Pterygoid (V3)
-tensor tympani
-tensor veli palatani
-anterior belly of digastric
-mylohoid muscles

Three Divisions:
V1 Ophthalmic: Sensory from upper part of face and scalp, cornea, orbit, nasal cavity, upper eyelid, part of nose
(FU SCONE)

V2 Maxillary: Sensory from cheek area, upper teeth, nose, upper lipe, lower eyelid
(CUT NULLE)

V3 Mandibular: Carries the motor fibers and is sensory to 2/3 anterior tongue, motor to lower teeth, and lower lip, and lower face
(MANTTLF)

Front 6

Abducent

Back 6

CN VI (6)
GSE: somatic motor to lateral rectus muscle

Front 7

Facial

Back 7

CN VII (7)
GSA: (EAM)
-external ear
-external acoustic meatus
SA: (specal sensory) for taste anterior 2/3 tongue (T) (via Chorda Tympani)
BE: (Vash the Stampede has weird faces, a belly, and style)
facial expression,
stapedius
posterior belly of digastric
stylohoid muscle
GVE: (MiSSLe)
-mucous glands of palate and nasal cavity
-sublingual & submandibular glands
-lacrimal glands

Front 8

Vestibulocochlear

Back 8

CN XIII 8
SA special sensory for hearing and balance

Front 9

Glossopharyngeal

Back 9

CN IX (9)
GSA:
Somatic sensory from posterior tongue, pharynx, middle ear, medial side of tympanic membrane
SA: special sensory for taste posterior 1/3 of the tongue
VSA: viscera sensory from
-carotid body
-sinus
VSE
-parotid gland
BE for
-Stylopharyngeous muscle

Front 10

Vagus

Back 10

GSA:
-Posterior part of the ear
-External Acoustic Meatus
SA: taste for the epiglottis (Kevin)
GVA:
aortic body
aortic arch receptors
pharynx, larynx, viscera of thorax
most of abdomen
GVE: pharynx, larynx, viscera of thorax,
most of abdomen
BE: to
palatoglossus
most muscles of pharynx and palate
laryngeal muscles

Front 11

Accessory

Back 11

CN: 11
GSE to trapezius and Sternocleidomastoid Muscle

Front 12

Hypoglossal

Back 12

CN 12
GSE to all intrinsic and extrinsic muscles of tongue except palatoglossus