intermandibularis anterolateral supplementary element UBERON:3010838 This class was sourced from an external ontology (amphibian_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon A muscle slip arising from the lingual surface of the mandible on the anterior portion of the bone. The fibers pass anteriorly, parallel to the mandible, and attach upon the ventral surface of the m. submentalis (Tyler, 1971).