Hyoglossus is a muscle in the tongue that helps with speech and swallowing. There are a few different synonyms for this muscle, including the lingual muscle and genioglossus muscle. The lingual muscle is named for its position in the tongue, while the genioglossus muscle refers to its origin near the chin (genio- meaning "chin" in Greek). Another synonym for Hyoglossus is intrinsic tongue muscle, as it is a muscle that is entirely contained within the tongue. These synonyms may be used interchangeably depending on the context and the field of study.