The lingual frenulum is a midline fold of mucosa that attaches the underside of the tongue to the floor of the mouth. On either side of its base lie the openings of the submandibular ducts.
| Location | Midline of the floor of the mouth, beneath the tongue |
|---|---|
| Parts |
|
| Nerve Supply | Lingual nerve |
| Blood Supply | Sublingual artery; Deep lingual artery |
| Venous drainage |
|
| Lymphatic drainage |
|
Anchors the underside of the tongue while still allowing it to move freely.
A short or tight frenulum (tongue-tie) can restrict tongue movement and sometimes interfere with breastfeeding or speech, treated by a minor release. The veins beside it are visible and are the site for fast absorption of medicines placed under the tongue.
A short frenulum restricting tongue movement, sometimes affecting feeding or speech.
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