Cranial Nerves Flashcards

1
Q

enumerate all 12 cranial nerves in order

A

CN I Olfactory
CN II Optic
CN III Oculomotor
CN IV Trochlear
CN V Trigeminal
CN VI Abducens
CN VII Facial
CN VIII Vestibulocochlear
CN IX Glossopharyngeal
CN X Vagus
CN XI Spinal Accessory
CN XII Hypoglossal

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2
Q

sensory: sense of smell

A

CN I Olfactory

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3
Q

sensory: sense of vision

A

CN II Optic

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4
Q

motor: eye movement, pupil size, lens shape

A

CN III Oculomotor

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5
Q

motor: eye movement (three CNs)

A

CN III Oculomotor, CN IV Trochlear, and CN VI Abducens

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6
Q

sensory: sensation of the head and face including eyes and oral cavity
motor: middle ear muscle, mastication muscle for chewing, palatine muscle, and throat muscle

A

CN V Trigeminal

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7
Q

sensory: sense of taste in the anterior 2/3 tongue
motor: facial expressions, submandibular and sublingual salivary glands of the mouth, lacrimal glands of the eye

A

CN VII Facial

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8
Q

sensory: sense of hearing and balance

A

CN VIII Vestibulocochlear/Acoustic

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9
Q

sensory: sense of taste in the posterior 1/3 tongue, tactile sensation of posterior tongue, middle ear, pharynx, sensory receptors from carotid arteries that monitor BP, blood pH, oxygen, and carbon dioxide levels
motor: swallowing, parotid salivary glands

A

CN IX Glossopharyngeal

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10
Q

sensory: sensation in the larynx, neck, thorax, abdominal organs, sensory receptors in the aortic arch that monitor BP, blood pH, oxygen, and carbon dioxide levels
motor: muscles of palate, pharynx, larynx, lungs, kidneys, heart rate, and digestion

A

CN X Vagus

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11
Q

motor: head and shoulder movement

A

CN XI Spinal Accessory

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12
Q

motor: tongue movement

A

CN XII Hypoglossal

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