The anterior belly of the digastric is innervated by which division of the trigeminal nerve?

Prepare for the Individual Readiness Assurance Test (iRAT) 4 in Head and Neck. Study with multiple-choice questions, comprehensive explanations, and detailed flashcards. Maximize your chances of success with thorough preparation and insightful study resources.

The anterior belly of the digastric is innervated by the mandibular division of the trigeminal nerve (V3). This muscle is derived from the first pharyngeal arch and receives motor innervation via the nerve to mylohyoid, a branch of the inferior alveolar nerve, which comes from V3. The other divisions of the trigeminal nerve are sensory (V1 and V2) or, in the case of the facial nerve, a different nerve altogether, so they do not supply this muscle.