BC CRNA Neuro Cranial Nerves

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cmatthews
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239014
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BC CRNA Neuro Cranial Nerves
Updated:
2013-10-06 12:39:51
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BC CRNA PV3 Neuro Cranial Nerves
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Neuro Cranial Nerves
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  1. The cranial nerves are spread through the head-neck region, except
    for the parasympathetic portions of the vagus nerve which pass to the abdominal organs.
  2. What is the 1st cranial nerve, what region does it enter?
    Olfactory & the nasal cavity
  3. What is the 2nd cranial nerve and what region does it enter?
    Optic & the orbit
  4. What is the 3rd cranial nerve and what region does it enter?
    Oculomotor & orbit
  5. What is the 4th cranial nerve and what region does it enter?
    Trochlear & orbit
  6. What is the 5th cranial nerve and what region does it enter?
    Trigeminal; V1 orbit, V2 pterygopalatine fossa, & V3 infratemporal fossa
  7. What is the 6th cranial nerve and what region does it enter?
    Abducens; orbit
  8. What is the 7th cranial nerve and what region does it enter?
    facial; temporal bone
  9. What is the 8th cranial nerve and what region does it enter?
    vestibularcochlear; temporal bone
  10. What is the 9th cranial nerve and what region does it enter?
    Glossopharyngeal; neck, middle ear, and infratemporal fossa
  11. What is the 10th cranial nerve and what region does it enter?
    Vagus; ????
  12. What is the 11th cranial nerve and what region does it enter?
    Accessory (spinal accessory) and the neck
  13. What is the 12th cranial nerve and what region does it enter?
    Hypoglossal and the neck
  14. Which cranial nerves have special sensory components?
    • I (olfactory; smell)
    • II (optic/ sight)
    • VII (facial; taste-anterior 2/3 of tongue)
    • VIII (vestibulocochlear; hearing)
    • IX (glosspharyngeal; taste-posterior 1/3 of tongue)
  15. Which cranial nerves have somatomotor components?
    • III (oculomotor)
    • IV (trochlear)
    • VI (abducens)
    • XII (hypoglossal)
  16. Which cranial nerves have visceromotor components?
    • III (oculomotor)
    • VII  (facial)
    • IX (Glossopharyngeal)
    • X (vagus)
  17. Which cranial nerves have general sensory components?
    V (Trigeminal)
  18. Which cranial nerves have branchiomotor components?
    • V (Trigeminal)
    • VII (Facial)
    • IX (glossoopharyngeal)
    • X (vagus)
    • XI (Accessory)
  19. Which of the cranial nerves have viscerosensory components?
    • IX (Glossopharyngeal)
    • X (vagus)
  20. What is the target/function of the 1st cranial nerve (olfactory)?
    Olfactory epithelium-smell
  21. What is the target/function of the 2nd cranial nerve (optic)?
    retina-vision
  22. What is the target/function of the 3rd cranial nerve (oculomotor)?
    • levator palpebrae superioris
    • superior rectus
    • medial rectus
    • inferior rectus
    • inferior oblique
    • preganglionic PSN: cilliary ganglion (innervation of the pupillae & cilliary muscle)
  23. What is the target/function of the 4th cranial nerve (trochlear)?
    superior oblique muscle
  24. What is the target/function of the 5th cranial nerve (trigeminal)?
    • V1: general sensation from skin & mucosa in region at and above orbit
    • V2: general sensation from skin & mucosa in region from orbit to mouth
    • V3: muscles of mastication, tensor tympani, tensor veli palatini, mylohyoid, anterior belly diagastric
    • general sensation from the skin & mucosa from region at & below the mouth
  25. What is the target/function of the 6th cranial nerve (Abducens)?
    to lateral rectus
  26. What is the target and function of the 7th cranial nerve (facial)?
    • muscles of the facial expression (stapedius, stylohyoid, mylohypoid, & posterior belly digastric)
    • taste (anterior 2/3 of the tongue)
    • preganglionic PS to submandibular ganglia (innervates submandibular & sublingual glands)
    • Preganglionic PS to pterygopalatine ganglia (innervates lacrimal gland, nasal glands, and palatine glands)
  27. What is the target/function of the 8th cranial nerve (vestibulocochlear)?
    hearing and balance
  28. What is the target/function of the 9th cranial nerve (glossopharyngeal)
    • stylopharyngeus
    • pharynx, palate, carotid sinus, carotid
    • taste (posterior 1/3 of tongue)
    • Middle ear and auditory tube
    • parotid
  29. What is the target/function of the 10th cranial nerve?
    • pharynx & larynx
    • auricle, external auditory meatus
    • mucosa of entire larynx
    • preganglionic PS to abdomen & thorax
  30. What is the target/function of the 11th cranial nerve?
    • trapezius
    • sternocleidomastoid
  31. What is the target/function of the 12th cranial nerve?
    all tongue muscles innervated except the palatoglossus

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