Identify the internal surface features and structures associated with the oral cavity.
- (ON BOTH SIDES) Identify the tongue, terminal sulcus, foramen cecum, vallate papillae , and sublingual fold and caruncle. (G 8.24 and 8.27;N 58 and 61;Gl 38.20)
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(ON THE LEFT SIDE ONLY) Carefully strip the mucosa from the sublingual fold and posterior-lateral aspect of the oral cavity. Identify and clean the
sublingual gland,
submandibular duct and
lingual nerve. (G 8.19B;N 53;Gl 38.27C & 38.23B)
Important Relationship
- The sublingual artery is positioned inferior to the submandibular duct.
- The sublingual gland is positioned superior to the mylohyoid muscle and lateral to the genioglossus muscle.
- The lingual nerve passes medial to the mandible and lateral to the medial pterygoid and styloglossus muscles.
- The lingual nerve passes inferior to the superior constrictor and pterygomandibular raphe.
- The lingual nerve passes lateral, inferior and medial to the submandibular duct.
