Cranial Nerves

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Author:
Dthiery237
ID:
209641
Filename:
Cranial Nerves
Updated:
2013-03-26 14:20:11
Tags:
Medic 14
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Description:
XII cranial nerves
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  1. I
    Olfactory
    • Sensory
    • smell
  2. II
    Optic
    • Sensory
    • carry visual info from the eyes
  3. III
    Occulomotor
    • Motor
    • Innervates  4 of 6 muscles that move the eyeball/ controls ammount of light that enters the eye and shape of lens
    • (superior,medial,and inferior rectus muscles and inferior oblique muscle.
  4. IV
    Trochlear
    • Motor
    • smallest cranial nerve
    • innervates the superior oblique muscle of the eyes.
    • refers to pully shaped ligamentous...
  5. V
    Trigeminal
    • mixed
    • sensory: orbital structures, nasal cavity, skin of forehead, eye lids,eyebrows, nose,lips,gums and teeth,cheek,palate, pharyx and tongue
    • motor:chewing muscles
  6. VI
    abducens
    • motor
    • lateral rectus muscle of eye
  7. VII
    Facial
    • mixed
    • sensory: taste receptors on anterior 2/3 tongue
    • motor: muscles of facial expressions,lacrimal tear glandm submandibular and sublinqual salivary glands
  8. VIII
    Vestibulochocochlear
    • sensory
    • hearing receptors for motion and balance
  9. IX
    Glossopharyngeal
    • mixed
    • sensory posterior 1/3 tongue, pharynx,palate, receptors for blood pressure,pH,oxygen,and carbon dioxide concentrations
    • Motor: pharyngeal muscles, parotid salivary gland
  10. X
    Vagus
    • mixed
    • sensory: pharynx,auricle and external acoustic canal;diaphragm,viseral organs in the thoratic and abdominopelvic cavities
    • motor: palatal and pharyngeal muscles and viseral organs in thoracic and abdominopelvic cavities
  11. XI
    accessory
    • motor
    • voluntary muscles of palate ,pharyx and larynx; sternocleidomastoid and trapezius muscles
  12. XII
    hypoglossal
    • motor
    • tongue muscles

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