embryology

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Author:
sthomp88
ID:
51065
Filename:
embryology
Updated:
2010-12-06 02:15:30
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quiz two
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Description:
ch. four 2
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  1. development of the face and neck begin when?
    week 4
  2. all of the arches and processes are formed with all of these except?
    ectoderm
    mesoderm
    endoderm
    cartilage
    cartilage
  3. the frontonasal process gives rise to all of these except?
    upper face
    maxillary incisors
    maxillary canines
    bridge of nose
    maxillary canines
  4. Thickened ectoderm that will develop into sensory organs
    placode
  5. lens placode=
    eyes
  6. otic placode=
    ears
  7. nasal placode =
    nasal cavity
  8. the medial nasal process will fuse__________to form the middle portion of the nose, and_______to form the interaxillary segment
    • externally
    • internally
  9. what embryonic strucure will eventually form the alae of the nose?
    lateral nasal processes
  10. The nasolacrimal groove is formed from the fusion of the what?
    lateral nasal processes and maxillary processes
  11. Previous to the fourth week of development, the stomodeum was sealed off by what?
    oropharyngeal membrane
  12. list 3 things that will develop from the mandibular arch
    • lower lip
    • lower mandible with teeth
    • mastication muscles
  13. which of the following comes from meckel's cartilage?
    stapes
    malleus
    hyoid
    thymus
    malleus
  14. the branchial groove will develop into what?
    eardrum
  15. which of these is not deried from reichart's cartilage?
    stapes
    incus
    styloid process
    upper portion of hyoid bone
    incus
  16. the third branchial arch will give rise to which muscle?
    pharyngeal muscle
  17. the second pharyngeal pouch gives rise to what structure?
    palatine tonsils

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