Mandibular Foramen Contents — MFDS Part 1 MCQ
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Correct answer: D — Inferior alveolar artery
Explanation lettering: D = shown as A · A = shown as D
A is correct. The inferior alveolar artery, a branch of the maxillary artery, enters the mandibular foramen with the inferior alveolar nerve and vein. These structures form the inferior alveolar neurovascular bundle and travel through the mandibular canal. The mental artery is a terminal branch of the inferior alveolar artery that leaves through the mental foramen, rather than entering the mandibular foramen. The mylohyoid artery accompanies the mylohyoid nerve near the mylohyoid groove and does not traverse the mandibular canal. The facial artery crosses the inferior border of the mandible anterior to the masseter, while the buccal artery supplies the cheek and buccinator region.
Reference: Khamanarong K et al. An anatomical study on locations of the mandibular foramen and the accessory mandibular foramen in the mandible and their clinical implication in a Thai population. Anatomy & Cell Biology. 2020. https://pubmed.ncbi.nlm.nih.gov/32727955/