Embryo Flashcards

1
Q

Ektoderm

A
  • pharyngeal clefts/grooves (yttre gälfickan)
  • hud, nervsystem
  • bildar: yttre hörselgången + inre hinnlabyrinten
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2
Q

Mesoderm

A
  • pharyngeal arch (gälbågen)
  • muskler, ben, brosk
  • bildar: ytterörat + hörselbenen + yttre benlabyrinten
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3
Q

Endoderm

A
  • pharyngeal pouches (inre gälfickan)
  • ”inre organ”
  • bildar: mellanörat (tympanic cavity), örontrumpeten
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4
Q

Innerörat bildas…?

A
  • vecka 5-8: inre hinnlabyrinten bildas

- vecka 8-20: yttre benlabyrinten bildas

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5
Q

Ytterörat bildas?

A
  • bildas vecka 6-10
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6
Q

Fungerande hörsel?

A

Vecka 20-30…?

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7
Q

Fullt utvecklat öra?

A

30-40

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