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The muscles of mastication are well developed.
The muscles of mastication are well developed.
===Jaw Opening Muscles===
*Digastricus muscle
*Digastricus muscle
===Jaw Closing Muscles===
All jaw closing muscles are derived from the first visceral arch and are innervated by the mandibular branch of the trigeminal nerve ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN V3]])
All jaw closing muscles are derived from the first visceral arch and are innervated by the mandibular branch of the trigeminal nerve ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN V3]])