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Anatomy - Head and Neck > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

0
Q

CN II

A

Optic Nerve
Special sensory: vision
Foramen: optic canal

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1
Q

CN I

A

Olfactory Nerve
Special sensory: smell
Cribiform plate

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2
Q

CN III

A

Occulomotor
Motor: 5/7 extraocular muscles
Special sensory: pupil constriction and lens accomodation
Foramen: superior orbital fissure

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3
Q

CN IV

A

Trochlear
Motor: 1/7 extraocular muscles
Foramen: superior orbital fissure

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4
Q

CN V

A

Trigeminal
Motor: muscles of mastication
Sensory: head and face
Foramen: each branch has their own

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5
Q

CN V1

A

Opthalmic
Sensory: Skin above the Eyes (via supraorbital nerve)
Foramen: superior orbital fissure –> supraorbital foramen

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6
Q

CN V2

A

Maxillary
Sensory: Skin below the eyes to the upper teeth (via infraorbital nerve)
Foramena: Foramen rotundum –> (ptergopalatine fossa) –> inferior orbital fissure –> (floor of orbit) –>infraorbital foramen

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7
Q

CN V3

A

Mandibular
Motor: Muscles of mastication (massetter, temorallis, lateral and medial ptergoid, mylohyoid, anterior digastricus)
Sensory: Skin below the lower teeth (via inferior alveolar)
Anterior 2/3 of the tongue (via lingual)
Foramen: foramen ovale –> Mandibular –> mental foramen

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8
Q

CN VI

A

Abducens
Motor: 1/7 Extra-ocular muscles (lateral rectus)
Foramen: superior orbital fissure

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9
Q

CN VII

A

Facial
Motor: Muscles of Expression (occipitofrontalis, zygomaticus, obicularis oris and occuli, buccinator, platysma, mentalis, stylohyoid, posterior digastricus)
Special Sensory: Taste to anterior 2/3 of the tongue
Autonomics: Lacrimal and Salivary glands
Sensory: Ear canal and Auricle
Foramen: Internal Acoustic Meatus –> exits at stylomastoid foramen

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10
Q

CN VIII

A

Vestibulocochlear
Special Sensory: Hearing and balance
Foramen: Internal Acoustic Meatus

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11
Q

CN IX

A

Glossopharyngeal
Motor: Pharyngeal muscles (superior, middle and inferior constrictors)
Specail Sensory: taste to the posterior 2/3 of the tongue
Autonomics: Parotid Salivary Gland
Sensory: posterior 1/3 of the tongue
Foramen: Jugular Foramen

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12
Q

CN X

A

Vagus
Motor: Laryngeal muscles
Special Sensory: base of tongue and taste
Autonomics: Thoracic and abdominal viscera
Sensory: Ear canal
Foramen: Jugular Foramen

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13
Q

CN XI

A

Spinal Accessory
Motor: Trapezius and Sternocleidomastoid
Foramen: Jugular Foramen

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14
Q

CN XII

A

Hypoglossal
Motor: Muscles of the tongue
Foramen: Hypoglossal Canal

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Anatomy - Head and Neck (4 decks)

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