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CMM401/501 Unit 3 Cards > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

(70 cards)

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1
Q

What is this structure?

A

CN I (Olfactory)

CN I (Olfactory)

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2
Q

Motor/Sensor/Both?

A

Special sensory (Smell)

CN I (Olfactory)

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3
Q

Source?

A

Frontal lobe

CN I (Olfactory)

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4
Q

Skull Foramen?

A

Foramina in cribriform plate

CN I (Olfactory)

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5
Q

Innervates?

A
  • Consists of multiple small fibers off the olfactory bulb which sits in the cribriform plate.
  • Superior epithelium of nasal cavity for smell

CN I (Olfactory)

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6
Q

What is this structure?

A

CN II (Optic)

CN II (Optic)

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7
Q

Motor/Sensory/Both?

A

Special sensory (vision)

CN II (Optic)

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8
Q

Source?

A
  • Diencephalon
  • Left and right optic nerves unite at the optic chiasm on the inferior aspect of the brain, then continue into the brain as the optic tracts.

CN II (Optic)

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9
Q

What is this structure?

A

CN XII (Hypoglossal)

CN XI (Spinal Accessory)

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10
Q

What is this structure?

A

CN III (Oculomotor)

CN III (Oculomotor)

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11
Q

What is this structure?

A

CN IV (Trochlear)

CN IV (Trochlear)

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12
Q

What is this structure?

A

CN V1 (Trigeminal-Opthalamic)

CN V1 (Trigeminal-Opthalamic)

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13
Q

What is this structure?

A

CN V2 (Trigeminal-Maxillary)

CN V2 (Trigeminal-Maxillary)

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14
Q

What is this structure?

A

CN V3 (Trigeminal-Mandibular)

CN V3 (Trigeminal-Mandibular)

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15
Q

What is this structure?

A

CN VI (Abducens)

CN VI (Abducens)

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16
Q

What is this structure?

A

CN VII (Facial)

CN VII (Facial)

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17
Q

What is this structure?

A

CN VIII (Vestibulocochlear)

CN VIII (Vestibulocochlear)

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18
Q

What is this structure?

A

CN IX (Glossopharangeal)

CN IX (Glossopharangeal)

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19
Q

What is this structure?

A

CN X (Vagus)

CN X (Vagus)

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21
Q

Skull Foramen?

A

Optic canal

CN II (Optic)

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22
Q

Innervates?

A

Retina of eyeball for vision

CN II (Optic)

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23
Q

Sensory/Motor/Both?

A

Motor
* Somatic & Parasympathetic

CN III (Oculomotor)

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24
Q

Source?

A

Midbrain

CN III (Oculomotor)

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25
Q

Skull Foramen?

A

Superior orbital fissure

CN III (Oculomotor)

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26
Innervates?
Somatic motor to muscles in orbit, parasympathetic innervation to muscles of iris and ciliary muscles controlling lens shape. | CN III (Oculomotor)
27
Sensory/Motor/Both?
Motor - Somatic | CN IV (Trochlear)
28
Source?
Midbrain | CN IV (Trochlear)
29
Skull Foramen?
Superior Orbital fissure | CN IV (Trochlear)
30
Innervates?
Motor to superior oblique muscle in orbit | CN IV (Trochlear)
31
Sensory/Motor/Both?
Sensory - Somatic | CN V1 (Trigeminal-Opthalamic)
32
Source?
Pons | CN V1 (Trigeminal-Opthalamic)
33
Skull Foramen?
Superior orbital fissure | CN V1 (Trigeminal-Opthalamic)
34
Innervates?
Sensation of orbit, superior nasal cavity, forehead | CN V1 (Trigeminal-Opthalamic)
35
Sensory/Motor/Both?
Sensory - Somatic | CN V2 (Trigeminal-Maxillary)
36
Source?
Pons | CN V2 (Trigeminal-Maxillary)
37
Skull Foramen?
Foramen rotundum | CN V2 (Trigeminal-Maxillary)
38
Innervates?
Sensation of: * Skin of face over upper jaw * Upper teeth * Inferior/posterior nasal cavity * Palate in oral cavity Parasympathetics are from connections to CN VII. All branches of CN V also provide sensory innervation to dura mater. | CN V2 (Trigeminal-Maxillary)
39
Sensory/Motor/Both?
Both Sensory - Somatic Motor - Somatic | CN V3 (Trigeminal-Mandibular)
40
Source?
Pons | CN V3 (Trigeminal-Mandibular)
41
Skull Foramen?
Foramen Ovale | CN V3 (Trigeminal-Mandibular)
42
Innervates?
* Sensation of skin over lower jaw, side of head, lower teeth, oral cavity, anterior 2/3 of tongue. * Motor to muscles of mastication, some palatal/ear muscles. * Parasympathetic fibers are from connections to CN VII and CN IX. | CN V3 (Trigeminal-Mandibular)
43
Sensory/Motor/Both?
Motor - Somatic | CN VI (Abducens)
44
Source?
Junction between pons and medulla | CN VI (Abducens)
45
Skull Foramen?
Superior orbital fissure | CN VI (Abducens)
46
Innervates?
Motor to lateral rectus muscle in orbit | CN VI (Abducens)
47
Sensory/Motor/Both?
Special sensory - taste from anterior 2/3 of tongue Motor- somatic & parasympathetic | CN VII (Facial)
48
Source?
Junction between medulla and pons | CN VII (Facial)
49
Skull Foramen?
Internal acoustic meatus to facial canal, out stylomastoid foramen in floor of temporal bone | CN VII (Facial)
50
Innervates?
* Sensation of taste to anterior 2/3 of tongue. * Somatic motor control to muscles of facial expression, stapedius muscle in ear,posterior digastric and stylohyoid. * Parasympathetic innervation to glands of orbit/nose, submandibular and sublingual salivary glands | CN VII (Facial)
51
Sensory/Motor/Both?
Special sensory-balance and hearing | CN VIII (Vestibulocochlear)
52
Source?
Junction between pons and medulla | CN VIII (Vestibulocochlear)
53
Skull foramen?
Internal acoustic meatus | CN VIII (Vestibulocochlear)
54
Innervates?
Two special sensory divisions: * Innervation (Vestibular) to semicircular canals (balance) * (Cochlear) cochlea (hearing). | CN VIII (Vestibulocochlear)
55
Motor/Sensory/Both?
* Special sensory-taste from posterior 1/3 of tongue * Sensory-somatic and visceral * Motor-somatic and parasympathetic | CN IX (Glossopharangeal)
56
Source?
Medulla | CN IX (Glossopharangeal)
57
Skull foramen?
Jugular foramen | CN IX (Glossopharangeal)
58
Innervates?
* Taste and general sensation to posterior 1/3 of tongue, soft palate, and pharynx near tongue, * General sensation of tympanic cavity, tympanic membrane, auditory tube. * Somatic motor innervation to stylopharyngeus muscle * Parasympathetic innervation to parotid gland, * Visceral sensory innervation to carotid bifurcation for blood pressure control | CN IX (Glossopharangeal)
59
Senory/Motor/Both?
* Special sensory-taste to pharynx * Sensory-somatic and visceral * Motor-somatic and parasympathetic | CN X (Vagus)
60
Source?
Medulla | CN X (Vagus)
61
Skull foramen?
Jugular foramen | CN X (Vagus)
62
Innervates?
* Special sensory innervation of taste to palate/epiglottis, * General sensory innervation from epiglottis, larynx. * Visceral sensory innervation to GI tract, thorax, abdomen. * Somatic motor innervation to pharynx, larynx, palatal muscles. * Parasympathetic motor innervation to GI tract, thorax, abdomen. | CN X (Vagus)
63
Motor/Sensory/Both?
Motor - Somatic | CN XI (Spinal Accessory)
64
Source?
Superior spinal cord | CN XI (Spinal Accessory)
65
Skull Foramen?
Jugular foramen | CN XI (Spinal Accessory)
66
Innervates?
* Trapezius * Sternocleidomastoid | CN XI (Spinal Accessory)
67
Motor/Sensory/Both
Motor - Somatic | CN XI (Spinal Accessory)
68
Source?
Medulla | CN XI (Spinal Accessory)
69
Skull foramen?
Hypoglossal Canal | CN XI (Spinal Accessory)
70
Innervates?
Intrinsic and extrinsic muscles of tongue (not palatoglossus) | CN XI (Spinal Accessory)
71
What is this structure?
CN XI (Spinal Accessory) | CN XI (Spinal Accessory)

CMM401/501 Unit 3 Cards (5 decks)

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