Term
| CN I Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN II Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN III Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN IV Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN V Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN VI Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN VII Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN VIII Name and function (Sensory/Motor/Mixed) |
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Definition
Vestibulocochlear Nerve
Sensory |
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Term
| CN IX Name and function (Sensory/Motor/Mixed) |
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Definition
Glossopharyngeal Nerve
Mixed |
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Term
| CN X Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN XI Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| CN XII Name and function (Sensory/Motor/Mixed) |
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Definition
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Term
| The fibers of CN I pass through what? |
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Definition
| Cribaform plate of ethmoid bone |
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Term
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Definition
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Term
| Cells that myelinate CN II? |
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Definition
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Term
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Definition
| Optic Foramen and continuing down the optic canal. |
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Term
| Describe the effects of different lesions of CN II |
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Definition
Optic nerve (between eye and optic chiasm) Loss of vision in one eye
Optic Chiasm: Half of vision in each eye (mostly peripheral)
Optic Track (Between optic chiasm and brain) One side of visual field is lost in both eyes. I.e. Loss of left visual field in BOTH eyes. |
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Term
| Major structures innervated by CN III? |
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Definition
Medial Rectus, Inferior Rectus, Inferior Oblique, Superior Rectus
Also ciliary muscles and sphincter pupillae |
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Term
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Definition
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Term
| Nerves that pass through cavernous sinus? |
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Definition
CN III, IV, and VI (the nerves that move the eye)
Oculomotor, Trochlear, and Abducens |
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Term
| Major structures innervated by CN IV? |
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Definition
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Term
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Definition
Inferior Trochlear nerve passes under trochlea
Superior Trochlear Nerve passes above trochlea |
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Term
| Major Branches and exit points of CN V? |
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Definition
V1: Opthalmic
Exits by superior orbital fissure
V2: Maxillary
Exits by Foramen Rotundum
V3: Mandibular
Exits by foramen ovale |
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Term
| Major innervated by CN V? |
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Definition
Sensory to face, scalp, eyeball, sinuses, anterior 2/3 of tongue
floor of mouth, nasal cavity, teeth, external ear.
Long story short: everything in head except last third of tongue
Motor to Muscles of mastication: Anterior belly of digastric, mylohyoid, masseter, temporalis, medial and lateral pterygoid
Also tensor typmani and tensor palatini |
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Term
| What goes through the foramen runtundum? |
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Definition
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Term
| What goes through the foramen ovale? |
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Definition
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Term
| Bell's Palsy is associated with what nerve? |
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Definition
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Term
| Major structures innervated by CN VI? |
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Definition
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Term
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Definition
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Term
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Definition
| Internal Acoustic Meatus with CN VIII |
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Term
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Definition
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Term
| Major branches of CN VII? |
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Definition
Temporal
Zygomatic
Buccal
Marginal Mandibular
Cervical
To Zanzibar By Motor Car! |
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Term
| Major functions of CN VII? |
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Definition
Motor to muscles of facial expression
Parasympathetic innervation of Sublingual and lacrimal glands
Sensory: Taste |
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Term
| Damage to CN VII can cause what? |
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Definition
Drooping of facial muscles (bell's palsy)
Loss of parasympathetics to facial glands. Dry eyes, and less saliva.
Also can cause loss of taste |
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Term
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Definition
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Term
| Major branches of CN VIII? |
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Definition
Cochlear (hearing)
Vestibular (balance, positioning and fixation of gaze) |
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Term
| Major exit point of CN IX? |
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Definition
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Term
| Nerves that pass through the jugular foramen? |
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Definition
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Term
| Major structures innervated by CN IX? |
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Definition
Sensory for tympanic Membrane, Carotid Sinus, and tympanic cavity
Motor to sylopharyngeus muscle |
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Term
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Definition
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Term
| Major structures innervated by CN X? |
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Definition
Sensory to: dura of posterior cranial fossa, concha, external acoustic meatus external surface of tympanic membrane and larynx
Motor to: muscles of soft palate and larynx.
ALSO Palatoglossus
Parasympathetic to heart, and most of gut |
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Term
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Definition
Cranial (exits via jugular foramen)
Spinal (exits via foramen magnum) |
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Term
| Major structures innervated by CN XI? |
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Definition
Sternocleidomastoid
Trapezius |
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Term
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Definition
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Term
| Major structures innervated by CN XII? |
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Definition
| All lingual muscles EXCEPT Palatoglossus |
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Term
| Only cranial nerve that crosses before the brainstem? |
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Definition
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Term
| After sticking out your tongue, it deviates to the right. What nerve is damaged? |
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Definition
| CN XII on the right. The tongue will point to the side of damage |
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Term
[image]
What nerve is damaged and how can you tell? |
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Definition
| Hypoglossal on the left. Muscles of the tongue are paralyzed on the same side , making the tongue point in the direction of the lesion. |
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Term
[image]
What nerve is damaged and how can you tell? |
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Definition
| Facial nerve on the left. Notice the drooping of the facial muscles. He has bell's palsy |
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Term
[image]
What nerve is damaged and how can you tell? |
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Definition
| Abducens nerve on the left. The lateral rectus is paralyzed, so there is unopposed action by the medial rectus, pulling the eye to center. |
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