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MOTOR ROOT OF TRIGEMINAL NERVE
The less root of the trigeminal nerve, composed of fibres originating from the trigeminalenginenucleus and emerging from the ponsmedial to the many larger sensory root, to join the mandibular nerve; it carries engine and proprioceptive fibres to the muscles derived from the firstbronchial (mandibular) arch, including the four muscles of mastication, plus the mylohyoid, anteriorbelly of the digastric, and the tensores tympani and veli palati.
Synonym: radix motoria nervi trigemini, masticator nerve, portio minornervi trigemini.