pharyngeal arches

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Author:
barbaraj33
ID:
63666
Filename:
pharyngeal arches
Updated:
2011-02-02 15:38:16
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neuro pharyngeal arches exam
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neuro exam 3 pharyngeal arches
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  1. What is the aortic arch derivative of the first pharyngeal arch?
    There is no aortic arch derivative of the first pharyngeal arch.
  2. What is the aortic arch derivative of the second pharyngeal arch?
    There is no aortic arch derivative of the second pharyngeal arch.
  3. What is the aortic arch derivative of the third pharyngeal arch?
    Common carotid artery
  4. What is the aortic arch derivative of the fourth pharyngeal arch?
    subclavian artery on the right; aortic arch on the left
  5. What is the aortic arch derivative of the sixth pharyngeal arch?
    Portions of the pulmonary arteries
  6. What is/are the skeletal derivative(s) of the first pharyngeal arch?
    part of the sphenoid, incus, maxilla, zygoma, squamous temporal, malleus, mandible, sphenomandibular ligament
  7. What is/are the skeletal derivative(s) of the second pharyngeal arch?
    Stapes, styloid process, stylohyoid ligament, upper hyoid bone
  8. What is/are the skeletal derivative(s) of the third pharyngeal arch?
    rest of the hyoid bone (that which is not formed by arch 2)
  9. What is/are the skeletal derivative(s) of the fourth pharyngeal arch?
    laryngeal cartilages
  10. What is/are the skeletal derivative(s) of the sixth pharyngeal arch?
    Laryngeal cartilages
  11. What is the muscle derivative of the first pharyngeal arch?
    • MMMAT
    • muscles of mastication, mylohyoid, anterior belly of digastric, tensor tympani, tensor veli palatini
  12. What is the muscle derivative of the second pharyngeal arch?
    • FESSP
    • muscles of facial expression, stapedius, stylohyoid, posterior belly of digastric
  13. What is the muscle derivative of the third pharyngeal arch?
    stylopharyngeus
  14. What is the muscle derivative of the fourth pharyngeal arch?
    phayrngeal constrictors , cricothyroid muscle, levator veli palatini,
  15. What is the muscle derivative of the sixth pharyngeal arch?
    all laryngeal muscles except cricothyroid
  16. What is the associated cranial nerve of the first pharyngeal arch?
    V3 mandibular division of the the trigeminal nerve
  17. What is the associated cranial nerve of the second pharyngeal arch?
    VII facial nerve
  18. What is the associated cranial nerve of the third pharyngeal arch?
    IX glossopharyngeal nerve
  19. What is the associated cranial nerve of the fourth pharyngeal arch?
    X vagus nerve , superior laryngeal branch
  20. What is the associated cranial nerve of the sixth pharyngeal arch?
    X vagus nerve, recurrent laryngeal branch (fibers derive from the cranial part of nerve XI)
  21. What are the derivatives of the first pharyngeal arch?
    • There is no aortic arch derivative of the first pharyngeal arch
    • skeletal: part of the sphenoid, incus, maxilla, zygoma, squamous temporal, malleus, mandible, sphenomandibular ligament
    • muscle: muscles of mastication, mylohyoid, anterior belly of digastric, tensor tympani, tensor veli palatini (MMMAT)
    • Cranial nerve: V3 mandibular division of the the trigeminal nerve
  22. What are the derivatives of the second pharyngeal arch?
    • There is no aortic arch derivative of the first pharyngeal arch
    • skeletal: stapes, styloid process, stylohyoid ligament, upper hyoid bone
    • muscle: muscles of facial expression, stapedius, stylohyoid, posterior belly of digastric
    • Cranial nerve: VII facial nerve
  23. What are the derivatives of the third pharyngeal arch?
    • aortic: common carotid artery
    • skeletal: rest of hyoid bone
    • muscle: stylopharyngeus
    • cranial nerve: IX glossopharyngeal
  24. What are the derivatives of the fourth pharyngeal arch?
    • aortic: subclavian artery on the right, aortic arch on the left
    • skeletal: laryngeal cartilages
    • muscle: pharyngeal constrictors, cricothyroid, levator veli palatini
    • cranial nerve: X vagus nerve - superior laryngeal branch
  25. What are the derivatives of the sixth pharyngeal arch?
    • aortic: portions of the pulmonary arteries
    • skeletal: laryngeal cartilages
    • muscle: all laryngeal muscles except cricothyroid
    • cranial nerve: X Vagus nerve - recurrent laryngeal branch (fibers derived from the cranial part of CN XI)
  26. What is the derivative of the first pharyngeal pouch?
    middle ear cavity and the auditory tube
  27. What is the derivative of the second pharyngeal pouch?
    tonsillar crypts
  28. What is the derivative of the third pharyngeal pouch?
    inferior parathyroids, thymus
  29. What is the derivative of the fourth pharyngeal pouch?
    superior parathyroids
  30. What is the derivative of the sixth pharyngeal arch?
    C cells of the thyroid gland (originally from neural crest)
  31. What is the derivative of the first pharyngeal cleft?
    external acoustic meatus

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