Cranial nerves Flashcards

1
Q

Innervation function and exit of olfactory

A

Sensory
olfactory epithelium/ olfaction/ cribriform plate.
Also it passes onto the uncus of the temporal lobe to be processed.

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2
Q

Innervation function and exit of optic

A

Sensory

Retina/ vision and pupillary eye reflex/ optic Canal

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3
Q

Innervation function and exit of oculomotor

A

All leave through the superior orbital fissure.

  1. Motor: LR6SO4 rest 3/ movement of eyeball
    b. )Levator palpibrae sup/ Raising upper eyelid
  2. Parasympathetic: Sphincter papillae and ciliary muscled of the eyeball/ pupillary constriction and accomadation
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4
Q

Innervation function and exit of trochlear

A

Motor

Superior oblique/ movement of the eyeball/ Superior orbital fissure

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5
Q

Innervation function and exit of trigeminal

A

(Branches leave from different parts look at it in more detail)
1) Sensory:
Face, scalp, cornea, nasal and oral cavities/ general sensation
2)Motor: Salivary glands, muscles of mastication:/ opening and closing mouth
b.) Tensor tympani: Tension on the tympanic membrane

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6
Q

Innervation function and exit Facial

A

1)Sensory: (exit: Internal acoustic meatus)
anterior 2/3 of tongue/ taste/ same exit
2)Motor:
Muscles of facial expression/ facial movement
3)Parasympathetic::
Salivary and lacrimal glands/ salivation and lacrimation

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7
Q

Innervation function and exit Vestibulocochlear

A

Sensory: (Internal acoustic meatus)
Vestibular apparatus/ position movement
Cochlea/ hearing

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8
Q

Innervation function and exit glossopharyngeal

A
  • -> Jugular foramina exit
    1) Sensory:
    a. Pharynx/ post 1/3 tongue/ Eustachian tube middle ear (general sensation)
    b. post 1/3, carotid body, carotid sinus/ taste, chemoreception, baroreception.
    2) Motor: stylopharyngeus/ swallowing
    3. ) Parasympathetic: Parotid salivary gland/ salivation
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9
Q

Innervation function and exit of vagus

A
  • -> Jugular foramina
    1) Sensory: Pharynx, larynx, trachea, oesophagus/ general sensation
    2) Motor: Soft palate, pharynx, larynx, oesophagus/ speech and swallowing
    3) parasympathetic: thoracic and abdominals; viscera/ various organ systems(GI, Resp, Cardio etc)
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10
Q

Innervation function and exit of accessory

A

Motor: Sternocleidomastoid, trapezius/ Movement of head and neck. Say no and shrug your shoulders

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11
Q

Innervation function and exit of hypoglossal

A

Motor: Internal and external muscles of the tongue/ movement of tongue/ hypoglossal Canal

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12
Q

Abducens nerve:

A

Lateral rectus/ movement of eye/ SOF

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13
Q

Mnemonic to remember if sensory or motor

A

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

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