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Nervous System > Cranial Nerves (Lec 20) > Flashcards

Cranial Nerves (Lec 20) Flashcards

1
Q

How many cranial nerves are there

A

12 pairs

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2
Q

Somatic NS transmits sensory signals related to ________ stimuli, and motor signals related to ______

A

External

Skeletal muscles

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3
Q

Autonomic NS transmits sensory signals related to ______ stimuli and motor signals to _______

A

Internal

Visceral organs

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4
Q

CN I name

A

Olfactory nerve

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5
Q

CN II name

A

Optic nerve

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6
Q

CN III name

A

Oculomotor nerve

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7
Q

CN IV Name

A

Trochlear nerve

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8
Q

CN V name

A

Trigeminal nerve

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9
Q

CN VI name

A

Abducens nerve

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10
Q

CN VII name

A

Facial nerve

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11
Q

CN VIII name

A

Vestibulocochlear nerve

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12
Q

CN IX name

A

Glossopharyngeal nerve

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13
Q

CN X name

A

Vagus nerve

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14
Q

CN XI name

A

Accessory nerve

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15
Q

CN XII name

A

Hypoglossal nerve

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16
Q

Mneumonic for cranial nerve names

A 
Oh ——————————- Olfactory
Oh ———————————— Optic
Oh ——————— Occulomotor
To ————————— Trochlear
Touch —————————Trigeminal
And ————————- Abducens
Feel ———————————— Facial
a Virgin ————— Vestibulocochlear
Girls —————— Glossopharyngeal
Vagina ————————- Vagus 
Ah —————————— Accessory 
Heaven ——————— Hypoglossal
17
Q

Nerve that passes through Olfactory foramina

A

CN I (Olfactory Nerve)

18
Q

Nerve that passes through Internal Auditory Meatus

A 
CN VII (Facial nerve)
CN VIII (Vestibulocochlear nerve)
19
Q

Nerve that passes through Foramen Rotundum

A

CN V (Trigeminal nerve)

20
Q

Nerve that passes through Foramen Ovale

A

CN V (Trigeminal nerve)

21
Q

Nerve that passes through Superior Orbital Fissure

A 
CN III (Oculomotor nerve)
CN IV (Trochlear nerve)
CN V (Trigeminal nerve)
CN VI (Abducens nerve)
22
Q

Nerve that passes through Optic Foramen

A

CN II (Optic nerve)

23
Q

Nerve that passes through Stylomastoid foramen

A

CN VII (Facial nerve)

24
Q

Nerve that passes through Jugular foramen

A 
CN IX (Glossopharyngeal nerve)
CN X (Vagus nerve)
CN XI (Accessory nerve)
25
Q

Nerve that passes through Foramen magnum

A

CN XI (Accessory)

26
Q

Function of CN I (Olfactory nerve)

A
  • smell nerve
    Orgin: nose
    Sensory: smell
    Motor: none
27
Q

Functions of CN II (Optic nerve)

A 
*vision nerve
Pupil reflex, eyesight
Orgin: eye
Sensory: vision
Motor: none
28
Q

Functions of CN III (Oculomotor nerve)

A

Move eye and pupil reflex
Orgin: midbrain
Sensory: none
Motor:
Somatic innervation: extrinsic eye muscles
Autonomic innervation: intrinsic eye muscles

29
Q

Functions of CN IV (Trochlear nerve)

A

Moves eye
Orgin: midbrain
Sensory: none
Motor: extrinsic eye muscle

30
Q

Functions of CN V (Trigeminal nerve)

A

Teeth clenching, somatic sensation of face
Orgin: Pons
Sensory: face (somatic)
Motor: muscles of mastication (move mandible)

31
Q

Functions of CN VI (Abducens nerve)

A

Moves eye laterally
Orgin: pons
Sensory: none
Motor: extrinsic eye muscle

32
Q

Functions of CN VII (Facial nerve)

A 
Facial expression
Orgin: pons
Sensory: taste
Motor:
Somatic - muscles of facial expression
Autonomic - salivary glands
33
Q

Functions of CN VIII (Vestibulocochlear nerve)

A 
2 branches:
     - vestibular branch (balance)
     - cochlear branch (hearing)
Orgin: inner ear
Sensory: balance, hearing
Motor: none
34
Q

Functions of CN IX (Glossopharyngeal nerve)

A 
Gag reflex, swallowing
Orgin: medulla oblongate
Sensory: taste, carotids (visceral)
Motor: 
Somatic - pharynx
Autonomic - salivary gland
35
Q

Functions of CN X (Vagus nerve)

A 
Gag reflex, swallowing
Orgin: medulla oblongata
Sensory: Aorta (visceral)
Motor: 
Somatic - pharynx, larynx
Autonomic - thoracic, abdominal organs
36
Q

Functions if CN XI (Accessory Nerve)

A

*technically not a cranial nerve

Shrug shoulders, turn head
Orgin: spinal cord (C1-C5)
Sensory: none
Motor: trapezius, sternocleidomastoid muscle

37
Q

Functions of CN XII (Hypoglossal nerve)

A

Tongue movements
Orgin: medulla oblongata
Sensory: none
Motor: tongue muscles

38
Q

Cranial nerve sensory/motor/both mneumonic

A

Some say marry money but my brother says big brains matter more

39
Q

Cranial nerves functions mneumonic

A

Secure Victory Early Ewok, Force Everyone To Help Turn Away The Troopers

Smell, Vision, Eyes, Face, Taste, Hearing, Aorta, Trapezius, Tongue

Nervous System (7 decks)

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