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Quiz

Development of the Ear and Eye and Related Birth Defects (CF10)

Liz Maas 6 Fragen Aktualisiert am 21 Jul 2016

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Fragen in diesem Quiz (6)

  1. 1The otic placode appears in the 3rd week of development at 22 days. The Otic vesicle appears between the 4th and 5th week of development.
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  2. 2Which of the following is incorrectly matched?
    1. AThe ventral otocyst becomes the saccule and cochlear duct
    2. BThe dorsal otocyst becomes the utricle, semicircular canals, and endolymphatic duct
    3. CThe mesenchyme of the cochlear duct forms cartilage
    4. DThe inner ridge forms the hair cells
    5. ENone of the above
  3. 3Which of the following is incorrect?
    1. AThe tympanic cavity and auditory tube are from the first pharyngeal pouch
    2. BThe incus and malleus are from the first pharyngeal arch
    3. CThe external auditory meatus is from the first pharyngeal cleft
    4. DThe auricle comes from the first pharyngeal cleft
    5. EThe stapes come from the 2nd pharyngeal arch
  4. 4The inner layer of the optic cup forms the pigment of the retina and the outer layer forms the neural layer. The optic cup forms from the choroid fissure.
    1. ABoth statements true.
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  5. 5The sphinctor and dilator pupillae muscles develop from the mesoderm of the optic cup. The iris develops from the tip of the optic cup
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  6. 6SHH represses PAX2 at the midline and positively regulates PAX6. PAX2 regulates eye development, PAX6 regulates optic stalk differentiation
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false

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English
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Erstellt am 3 Apr 2016 · aktualisiert am 21 Jul 2016
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