What is the lingual frenulum?

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What is the lingual frenulum?

The lingual frenulum is a thin fold of mucous membrane that connects the underside of the tongue to the floor of the mouth. Its main role is to anchor the tongue in place, helping control its movements so the tongue doesn’t slip back and block the pharynx and so swallowing and speech can occur smoothly. It’s not a muscle, so it can’t contract to move the tongue, and it isn’t a cluster of taste buds. It’s also not just a simple connective tissue band—the key feature is that it’s a mucous membrane fold linking the tongue to the mouth floor.

The lingual frenulum is a thin fold of mucous membrane that connects the underside of the tongue to the floor of the mouth. Its main role is to anchor the tongue in place, helping control its movements so the tongue doesn’t slip back and block the pharynx and so swallowing and speech can occur smoothly. It’s not a muscle, so it can’t contract to move the tongue, and it isn’t a cluster of taste buds. It’s also not just a simple connective tissue band—the key feature is that it’s a mucous membrane fold linking the tongue to the mouth floor.

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