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Related to tuberculum impar: hypobranchial eminence
median lingual swelling
in the embryo, a small elevation in the floor of the mouth between the first and second pharyngeal arches; it is overgrown by the lateral lingual swellings and forms a small unrecognizable part of the posterior region of the anterior two thirds of the tongue.
me·di·an lin·gual swell·ing(mē'dē-ănling'gwăl swel'ing)
me·di·an lin·gual swell·ing(mē'dē-ăn ling'gwăl swel'ing)
In embryo, small elevation in floor of mouth between first and second pharyngeal arches; overgrown by lateral lingual swellings; forms a small part of posterior region of anterior two thirds of tongue.