CN Components/Location of nerve cell bodies

Question 1

Smell

Answer 1

CN I, Olfactory (SSA)

Question 2

CN I location of nerve cell bodies

Answer 2

olfactory epithelium

Question 3

Vision

Answer 3

CN II, Optic (SSA)

Question 4

CN II location of nerve cell bodies

Answer 4

Optic Canal

Question 5

Extraocular muscles

Answer 5

CN III, Occulomotor (GSE)

Question 6

Extraocular muscle- superior oblique

Answer 6

CN IV, Trochlear (GSE)

Question 7

CN IV location of nerve cell bodies

Answer 7

Superior orbital fissure

Question 8

Motor to muscles of mastication, mylohyoid, anterior belly of digastric, tensor veli palatini, tensor tympani

Answer 8

V3, Mandibular branch of Trigeminal (SVE)

Question 9

CN V location of nerve cell bodies

Answer 9

V1 and V2: trigeminal ganglion

V3: Pons

Question 10

Extraocular muscles, lateral recti

Answer 10

CN VI, Abducens (GSE)

Question 11

CN VI location of nerve cell bodies

Answer 11

Pons

Question 12

motor to muscles of facial expression and scalp; stapedius, stylohyoid, posterior belly of digastric

Answer 12

CN VII, Facial (SVE)

Question 13

Sensory from cornea, skin of forehead, scalp, eyelids, nose, and mucosa of nasal cavity and paransal sinuses

Answer 13

V1, Opthalmic branch of Trigeminal (GSA)

Question 14

Sensation from skin of face over maxilla, including upper lip, maxillary teeth, mucosa of nose, maxillary sinuses, and palate

Answer 14

V2, Mandibular branch of Trigeminal (GSA)

Question 15

Sensory to area of ear

Answer 15

CN VII, Facial, (GSA)

Question 16

taste from anterior two thirds of tongue and palate

Answer 16

CN VII, Facial, (SVA)

Question 17

parasympathetic to lacrymal, sbumandibular, and sublingual glands

Answer 17

CN VII, Facial (GVE)

Question 18

CN VII SVE location of nerve cell bodies

Answer 18

Pons

Question 19

CN VII SVA location of nerve cell bodies

Answer 19

Geniculate ganglion

Question 20

CN VII GVE location of nerve cell bodies

Answer 20

Presynaptic: Pons

Post synaptic: pterygopalatine ganglion; submandibular ganglion

Question 21

Organs of hearing and balance

Answer 21

CN VIII, Vestibulocochlear (SSA)

Question 22

CN VIII location of nerve cell bodies

Answer 22

vestibular ganglion and spiral ganglion

Question 23

Motor to all intrinsic and extrinsic muscles of the tongue (except palatoglossus)

Answer 23

CN XII, Hypoglossal (GSE)

Question 24

CN XII location of nerve cell bodies

Answer 24

Medulla

Question 25

Motor to sternocleidomastoid and trapezius

Answer 25

CN XI, Spinal Accessory (SVE)

Question 26

CN XI location of nerve cell bodies

Answer 26

Spinal cord

Question 27

Motor to stylopharyngeaus, assists with swallowing

Answer 27

CN IX Glossopharyngeal (SVE), medulla

Question 28

Parasympathetic innervation to parotid gland

Answer 28

CN IX Glossophayrngeal (pGVE), presynaptic= medulla, post synaptic = otic ganglion

Question 29

Sensation from parotid gland, carotid body and sinus, naso- and oro- pharynx, and middle ear

Answer 29

CN IX Glossopharyngeal (GVA), superior ganglion

Question 30

taste to posterior third of tongue

Answer 30

CN IX Glossopharyngeal (SVA), inferior ganglion

Question 31

Cutaneous sensation from external ear and sensation to posterior third of tongue

Answer 31

CN IX Glossopharyngeal (GSA), inferior ganglion

Question 32

motor to muscles of pharynx (except stylopharyngeus), intrinsic muscles of larynx, muscles of palate (except tensor veli palatini), and stirated muscles in superior two thirds of esophagus

Answer 32

CN X Vagus (SVE), Medulla

Question 33

Parasympathetic innervation to smooth muscle and glands of trachea, bronchi, digestive tract, coronary arteries, and nodes of conduction system of heart

Answer 33

CN X Vagus (pGVE), Presynaptic = medulla, postsynaptic = neurons in or near viscera

Question 34

Sensation from base of tongue, pharynx, larynx, trachea, bronchi, heart, esophagus, stomach, and intestine to left colic flexure

Answer 34

CN X Vagus (GVA), inferior ganglion

Question 35

Taste from epiglottis and palate

Answer 35

CN X Vagus (SVA), inferior ganglion

Question 36

Sensation from auricle, external acoustic meatus, and dura mater of posterior cranial fossa

Answer 36

CN X Vagus (GSA), superior ganglion

Question 37

GSA = General Somatic Afferent (4) + BRAIN STEM NUCLEUS

Answer 37

V (V2 and V2 supply sensation to face) TRIGEMINAL: SPINAL, MAIN, OR MESENCEPHALIC VII (sensory to area of ear) IX (sensation from external ear and sensation to posterior third of tongue X (Sensation from auricle, external acoustic meatus, and dura mater of posterior cranial fossa)

Question 38

SSA = Special Somatic Afferent (3) + BRAIN STEM NUCLEUS

Answer 38

I (smell) OLFACTORY II (vision) OPTIC VIII (hearing and balance) VESTIBULOCOCHLEAR

Question 39

GVA = General visceral afferent (3) + BRAIN STEM NUCLEUS

Answer 39

VII (not commonly listed, but transmit sensation from the viscera over the fibers of facial nerve) NUCLEUS SOLITARIUS IX (Sensation from parotid gland, carotid body and sinus, naso- and oro- pharynx, and middle ear) NS X (Sensation from base of tongue, pharynx, larynx, trachea, bronchi, heart, esophagus, stomach, and intestine to left colic flexure) NS

Question 40

SVA (3) Special visceral afferent + BRAIN STEM NUCLEUS

Answer 40

VII (taste anterior 2/3 of tongue) NS IX (taste posterior third of tongue) NS X (taste from epiglottis and palate) NS

Question 41

GSE = general somatic efferent (4) + BRAIN STEM NUCLEUS

Answer 41

III (Extraocular muscles) OCCULOMOTOR IV (Extraocular muscle- superior oblique) TROCHLEAR VI (Extraocular muscles- lateral recti) ABDUCENS XII (Motor to all intrinsic and extrinsic muscles of the tongue (except palatoglossus) HYPOGLOSSAL

Question 42

GVE or pGVE = General visceral efferent (parasympathetic) (4) + BRAIN STEM NUCLEUS

Answer 42

III (parasympathetic to smooth muscle in eye) EDINGER-WESTPHAL VII (parasympathetic to lacrymal, sbumandibular, and sublingual glands) SUPERIOR SALIVATORY IX (parasympathetic innervation to parotid gland) INFERIOR SALIVATORY X (Parasympathetic innervation to smooth muscle and glands of trachea, bronchi, digestive tract, coronary arteries, and nodes of conduction system of heart) MOTOR NUCLEUS OF VAGUS NERVE

Question 43

SVE = special visceral efferent (5) *all arch muscles* + BRAIN STEM NUCLEUS

Answer 43

V (Motor to muscles of mastication, mylohyoid, anterior belly of digastric, tensor veli palatini, tensor tympani) MOTOR NUCLEUS OF V VII (motor to muscles of facial expression and scalp; stapedius, stylohyoid, posterior belly of digastric_ FACIAL NUCLEUS IX (Motor to stylopharyngeus) AMBIGUUS X (motor to muscles of pharynx (except stylopharyngeus), intrinsic muscles of larynx, muscles of palate (except tensor veli palatini), and stirated muscles in superior two thirds of esophagus) AMBIGUUS XI (Motor to sternocleidomastoid and trapezius) SPINAL ACCESSORY