Development of the Osteocranium Quiz

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Questions and Answers

In modern amphibia, what bones arise from a single ossification in the orbitosphenoid region?

  • Epiotic, opisthotic, pterotic, and sphenotic
  • Prootic, epiotic, and opisthotic (correct)
  • Sphenethmoid bone
  • Mesethmoid bone

Which bones are found in the olfactory capsules?

  • Periotic bone
  • Ectothmoid bone (correct)
  • Mesethmoid bone
  • Prootic, epiotic, opisthotic, pterotic, and sphenotic

Which bones arise from ossification of the internasal septum?

  • Ectothmoid bone
  • Periotic bone
  • Sphenethmoid bone
  • Mesethmoid bone (correct)

What happens to the optic capsules in reptiles and birds?

<p>They form a ring of sclerotic bones (A)</p> Signup and view all the answers

What happens to the otic bones in Aves?

<p>They fuse together forming periotic (C)</p> Signup and view all the answers

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