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Neuroanatomy Cranial Nerves
South College
12
Other
Graduate
12/08/2008

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Cards

Term
CN I: Olfactory
Definition

Sensory

Smell

Term
CN II: Optic
Definition

Sensory

Sight

Term
CN III: Oculomotor
Definition
Motor = eyeball movement
    Superior, inferior, and medial rectus
    Inferior oblique 
    Levator palebrae
 
Parasympathetic = pupil constriction
    Pupillary constrictor muscle
    Ciliary muscle (lens)
Term
CN IV: Trochlear
Definition

Motor = moves eyeball

    -Superior oblique muscle

Term
CN V: Trigeminal
Definition
Sensory = sensations, general sensory from tongue, proprioception
    -Face, scalp, teeth, lips, eyeballs, nose and throat
     lining
    -Anterior 2/3 of tongue
    -Muscles of mastication
Motor 
    -Muscles of mastication 
 
Term
CN VI: Abducents
Definition

Motor

Lateral rectus

Term
CN VII: Facial nerve
Definition
Sensory = taste and proprioception
    -Anterior 2/3 of tongue
    -Face and scalp
Motor = facial expressions
    -Muscles of face
Parasympathetic = salivation and lacrimation
    -Salivary and lacrimal glands 
Term
CN VIII: Vestibulocochlear
Definition
Sensory = balance and hearing
    -Vestibular apparatus of internal ear
    -Cochlea of internal ear 
Term
CN IX: Glossopharyngeal
Definition
Sensory = taste, proprioception for swallowing, BP receptors
    -Posterior 1/3 of tongue
    -Throat muscles
    -Carotid sinuses 
Motor = swallowing and gag reflexes, tear production
    -Throat muscles
    -Lacrimal glands
Parasympathetic = saliva production
    -Parotid glands
Term
CN X: Vagus
Definition
Sensory = blood O2 concentration, pain, sensations, taste
 
Motor = HR and stroke volume, peristalsis, air flow, speech and swallowing
 
Parasympathetic = smooth muscles and glands of motor innervation and thoracic and abdominal walls
 
Term
CN XII: Accessory
Definition

Motor

SCM
Traps

Term
CN XII: Hypoglossal
Definition

Motor

Speech and swallowing (throat and tongue muscles)

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