Which of the following muscles is NOT derived from the first pharyngeal arch?

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Tensor tympani and tensor veli palatini musclesPosterior belly of the digastric muscleMuscles involved in masticationMylohyoid muscleNone of the above

Explanation

Muscles such as the tensor tympani, tensor veli palatini, masticatory muscles, and mylohyoid originate from the first pharyngeal arch. However, the posterior belly of the digastric muscle develops from the second pharyngeal arch, making it the exception.