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Elastin fibers: whole slide section (VVG). (a) Central floor of mouth (region of frenulum). (b) Ventral tongue (central ridge at superior-most aspect of lingual frenulum fold). (c) Submandibular duct openings (with dense connective tissue surrounding and tethering to mucosa). (d) Sublingual glands (embedded in and suspended from inferior layers of floor of mouth fascia). (e) Ventral tongue: rete pegs at interface between mucosa and connective tissue.
