All are developed from muscles of 1 arch except____________?
Correct answer: B. Posterior belly of digastric
- A. Tesnor tympani and tensor veli palatine
- B. Posterior belly of digastric
- C. Masticatory muscles
- D. Mylohyoid
Explanation
The posterior belly of the digastric develops from the second pharyngeal arch and is supplied by the facial nerve. Tensor tympani, tensor veli palatini, mylohyoid and the other masticatory muscles are first-arch derivatives.
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