CN Components/Location of nerve cell bodies Flashcards Preview

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Flashcards in CN Components/Location of nerve cell bodies Deck (43):
1

Smell

CN I, Olfactory (SSA)

2

CN I location of nerve cell bodies

olfactory epithelium

3

Vision

CN II, Optic (SSA)

4

CN II location of nerve cell bodies

Optic Canal

5

Extraocular muscles

CN III, Occulomotor (GSE)

6

Extraocular muscle- superior oblique

CN IV, Trochlear (GSE)

7

CN IV location of nerve cell bodies

Superior orbital fissure

8

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

V3, Mandibular branch of Trigeminal (SVE)

9

CN V location of nerve cell bodies

V1 and V2: trigeminal ganglion
V3: Pons

10

Extraocular muscles, lateral recti

CN VI, Abducens (GSE)

11

CN VI location of nerve cell bodies

Pons

12

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

CN VII, Facial (SVE)

13

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

V1, Opthalmic branch of Trigeminal (GSA)

14

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

V2, Mandibular branch of Trigeminal (GSA)

15

Sensory to area of ear

CN VII, Facial, (GSA)

16

taste from anterior two thirds of tongue and palate

CN VII, Facial, (SVA)

17

parasympathetic to lacrymal, sbumandibular, and sublingual glands

CN VII, Facial (GVE)

18

CN VII SVE location of nerve cell bodies

Pons

19

CN VII SVA location of nerve cell bodies

Geniculate ganglion

20

CN VII GVE location of nerve cell bodies

Presynaptic: Pons
Post synaptic: pterygopalatine ganglion; submandibular ganglion

21

Organs of hearing and balance

CN VIII, Vestibulocochlear (SSA)

22

CN VIII location of nerve cell bodies

vestibular ganglion and spiral ganglion

23

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

CN XII, Hypoglossal (GSE)

24

CN XII location of nerve cell bodies

Medulla

25

Motor to sternocleidomastoid and trapezius

CN XI, Spinal Accessory (SVE)

26

CN XI location of nerve cell bodies

Spinal cord

27

Motor to stylopharyngeaus, assists with swallowing

CN IX Glossopharyngeal (SVE), medulla

28

Parasympathetic innervation to parotid gland

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

29

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

CN IX Glossopharyngeal (GVA), superior ganglion

30

taste to posterior third of tongue

CN IX Glossopharyngeal (SVA), inferior ganglion

31

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

CN IX Glossopharyngeal (GSA), inferior ganglion

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

CN X Vagus (SVE), Medulla

33

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

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

34

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

CN X Vagus (GVA), inferior ganglion

35

Taste from epiglottis and palate

CN X Vagus (SVA), inferior ganglion

36

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

CN X Vagus (GSA), superior ganglion

37

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

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)

38

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

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

39

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

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

40

SVA (3) Special visceral afferent + BRAIN STEM NUCLEUS

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

41

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

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

42

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

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

43

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

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