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What is 1st pharyngeal arch gives rise to all except and explain in detail?
All soft palate muscles except tensor veli palatini are derived from the 4th pharyngeal arch and are supplied by vagal plexus. First pharyngeal arch gives rise to : Muscles of mastication (temporalis, masseter, lateral and medial pterygoids) Mylohyoid Anterior belly of digastric Tensor tympani Tensor veli palatini and Anterior 2/3rd of tongue. Ref: Langman's Medical embryology 13th edition PGno: 239