Embryo- Primitive Pharynx & tongue

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  1. Pharyngeal/Branchial Cleft is derived from the...
    ectoderm
  2. Pharyngeal Arches are derived from the...
    • Mesoderm
    • Neural Crest Cells
  3. Pharyngeal Pouches are derived from
    Endoderm
  4. Pharyngeal Pouch #1 => (2)
    • Tympanic Cavity
    • Auditory Tube (middle ear)
  5. Pharyngeal Pouch #2 => (1)
    Tonsillar Fossa
  6. Pharyngeal Pouch #3 => (2)
    • Parathyroid
    • Thymus
  7. Pharyngeal Pouch #4 => (2)
    • Parathyroid
    • Ultimobranchial Body (=> parafollicular cells)
  8. Thyroid follicles are derived from...
    endoderm (floor of pharynx) *
  9. Thyroid CT components are derived from...
    Mesoderm
  10. Development of thyroid:
    ___-> ____
    Thyroid Duct -> Thyroglossal Duct
  11. Remnant of the thyroglossal duct:
    Foramen Cecum of the tongue
  12. Muscles of mastication develop from which pharyngeal structure?
    First Pharyngeal Arch
  13. Digastricus is develop from which pharyngeal structures?
    First and Second Pharyngeal Arches
  14. Innervation to pharyngeal Arches:
    1st=
    2nd=
    3rd=
    4th=
    • 1st= 5
    • 2nd=7
    • 3rd= 9
    • 4th= 10
  15. 1st Pharyngeal Cleft =>
    External Acoustic Meatus
  16. Clefts 2, 3 and 4 =>
    cervical Sinus (regresses)
  17. Skeletal Components of the Pharyngeal Arches are derived from ___
    Neural Crest Cells (Neural Ectoderm)
  18. Rostral 2/3 of tongue develops from which pharyngeal structure
    1st Pharyngeal ARCH
  19. Caudal 1/3 of the tongue develops from what structures...
    • Hypobrachial Eminence
    • Pharyngeal Arch 2,3 & 4
  20. The body of the tongue is derived from ___
    stomodeal ectoderm
  21. Striated mm of the tongue, develops from...
    occipital somites
  22. The tongue is innervated by:
    • 5 (trigeminal)
    • 7 (Facial)
    • 9 (glossopharyngeal)
    • 12 (hypoglossal)
Author
ID
52690
Card Set
Embryo- Primitive Pharynx & tongue
Description
Embryo- Primitive Pharynx & Dev of thyroid/tongue
Updated
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