Anatomy & Histology · single question
Some mandibular molars receive accessory innervation that can cause incomplete anesthesia after an IAN block. This accessory nerve is the:
Show answer and explanation
Correct answer: A. Mylohyoid nerve
- A. Correct. The MYLOHYOID nerve (a branch of V3 given off before the IAN enters the mandibular foramen) can supply accessory innervation to mandibular molars, explaining occasional block failures.
- B. The long buccal nerve supplies the buccal soft tissue/gingiva of the molars, not the pulps as accessory supply.
- C. The lingual nerve supplies the tongue and lingual gingiva.
- D. The auriculotemporal nerve supplies the TMJ and temple region, not the molar pulps.
Practice Anatomy & Histology questions Anatomy & Histology study notes