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Cranial Nerves Flashcards

1
Q

Modality - Nucleus - Associated Nerves - Function - Associated Foramens:

Somatic Cranial Nerves

A
  1. somatic
  2. oculomotor, trochlear, abducens, hypoglossal
  3. III, IV, VI, XII
    4.

Oculomotor: all extraocular muscle except superior obliques and lateral rectus

Trochlear: superior obliques

Abducens: lateral rectus

hypoglossal: intrinsic and extrinsic tongue muscles except for palatoglossus

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2
Q

Modality - Nucleus - Associated Nerves - Function - Associated Foramens:

Brachial Motor

A
  1. Brachial motor: defferent
  2. Masticator nucleus receive CN V,
    facial motor nuclei receives facial nerve (VII)
    ambiguous nucleus receives CNIX and CNX
    accessory nucleus receive CNXI
  3. Masticator: muscles of mastication, all facial muscles, muscles of pharynx and larynx, trapezius and sternomastoid
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3
Q

Modality - Nucleus - Associated Nerves - Function - Associated Foramens:

Visceral motor (parasympathetic)

A
  1. visceral motor (parasympathetic)
  2. Edinger-Westphal (III), Super salivatory (VII), Inferior salivatory (IX), dorsal vegus (X)
  3. Edinger-Westphal: ciliary muscles + constrictor pupillae
    Superior Salivatory: all glands of the head except integumentary and parotid
    Inferior salivatory: parotid gland
    Dorsal vegus: all thoracic and abdominal viscera
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4
Q

Modality - Nucleus - Associated Nerves - Function - Associated Foramens

Visceral Sensory

A
  1. Visceral Sensory: GVA + SVA
  2. Solitarius (nucleus tractus solitarius)
  3. posterior 1/3 tongue via IX, anterior 2/3 via VII, epiglottis down to mid transverse colon via X

Visceral responses/reflexes, ischemic reflexes

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5
Q

Modality - Nucleus - Associated Nerves - Function - Associated Foramens

General sensory

A

General sensory

Trigeminal

V, VII, IX, X

Pain, temperature, touch, propoioception from the head and neck, sinuses and meninges

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6
Q

Modality - Nucleus - Associated Nerves - Function - Associated Foramens

Special Sensory

A 
Mitral cells of olfactory bulb
Ganglion cells of retina 
Gustatory 
Vestibular 
Cochlear 
smell: I     
Vision: II
Taste: VII, IX 
Balance: VIII
Hearing: VIII
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7
Q

Foramen + nerves: CN I

A

Olfactory never, cribriform plate

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8
Q

Foramen + nerves: CN II

A

Optic nerve, optic canal

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9
Q

Foramen + nerve: CN III

A

Oculomotor Nerve, Superior orbital fissure

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10
Q

Foramen + nerve: CN IV

A

Trochlear, Superior Orbital Fissue

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11
Q

Foramen + nerve: CN V

A

V1, trigeminal, Opthalmic division of the trigeminal, Superior orbital fissure

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12
Q

Foramen + nerve: CN VI

A

Abducens, Superior Orbital Fissure

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13
Q

Foramen + nerve CN VII

A

Facial nerve, internal acoustic meatus

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14
Q

Foramen + nerve CN VIII

A

vestibulocochlear, internal acoustic meatus

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15
Q

Foramen + nerve CN IX

A

Glossopharyngeal, jugular foramen

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16
Q

Foramen + CN X

A

Vagus, jugular foramen

17
Q

Foramen + CN XI

A

Accessory, jugular foramen

18
Q

Foramen + CN XII

A

Hypoglossal, hypoglossal canal

19
Q

Foramne + CN V: V1, V2, V3

A

V1 (opthalmic division of the trigeminal) travels through the superior orbital fissure, V2 through the jugular rotundum (maxillary process of the trigeminal), and V3 travels through the jugular ovale (manibular process of the trigeminal)

20
Q

Oculomotor: modality, sites of innervation, function, associated foramen

A

Parasympathetic (visceral motor): provides parasympathetic innervation to the constrictor pupillae, ciliary muscles via the ciliary ganglion

Somatic motor (general somatic efferent) provides motor innervation to the levator palpebrae superiors , superior rectus, medial rectus, inferior rectus, and inferior rectus, inferior oblique muscles of the eye

superior orbital fissure

21
Q

Abducens

A

somatic motor (general motor efferent) abducens abducts the lateral rectus muscles of the eye

enters cranium via superior orbital fissure

22
Q

Olfactory

A

special sensory (olfaction) afferent

nuclei is in the olfactory bulb

23
Q

Trochlea

A

somatic motor (general motor efferent) provides innervation to the superior oblique muscles of the eye

enters cranium through the superior orbital fissure

24
Q

Optical

A

Special sensory (afferent) from the eyes

25
Ocular muscle movement: abduction, adduction, etc
medial rectus (MR)— moves the eye inward, toward the nose (adduction) lateral rectus (LR)— moves the eye outward, away from the nose (abduction) superior rectus (SR)— primarily moves the eye upward (elevation) secondarily rotates the top of the eye toward the nose (intorsion) tertiarily moves the eye inward (adduction) inferior rectus (IR)— primarily moves the eye downward (depression) secondarily rotates the top of the eye away from the nose (extorsion) tertiarily moves the eye inward (adduction) superior oblique (SO)— primarily rotates the top of the eye toward the nose (intorsion) secondarily moves the eye downward (depression) tertiarily moves the eye outward (abduction) inferior oblique (IO)— primarily rotates the top of the eye away from the nose (extorsion) secondarily moves the eye upward (elevation) tertiarily moves the eye outward (abduction)
26
Trigeminal: V1 components
Opthalmic division: consists of lacrimal nervem nasociliary nerve, frontal nerve.
27
Trigeminal: V2 components
Maxillary division: Zygomatic, infra orbital, superior alveolar nerves
28
Trigeminal: V3 components
Mandibular division: meningeal branch, auriculotemporal, buccal, lingual , inferior alveolar nerve
29
Trigeminal modalities
brachial motor (special visceral efferent) and General sensory (somatic afferent)
30
All sensory information from the face goes to what nucleus?
Nuc. of V
31
proprioception from the face goes to what nucleus in the brainstem
mesencephalic nucleus of the V nucleus
32
Crude tactile from the face goes to what nucleus in the brainstem
Main sensory nucleus of the V nucleus
33
Pain, temp, tactile from the face go to what nucleus of the brainstem
Descending nucleus of the V nucleus
34
General visceral afferents, and their nuclei in the brianstem
Vagus (CNX) from posterior 1/3 of oral cavity, epiglottis, down to the middle of the transverse coloon---> nucleus tractus solitarus (NTS)
35
Special visceral afferents, their nuclei in the brainstem
Posterior 1/3 taste via CN IX anterior 2/3 taste via CN VII Olfaction CN I Epiglottis CNX all go to NTS

Anatomy (30 decks)

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