Alimentarycanal:Section1Theoralcavity·is the commencement of the alimentary canal· communicates with the exterior by the oral fissure anteriorlyand pharynx by the isthmus offauces posteriorly is divided into oral vestibule & oral cavity properI. Lips
Section 1 The oral cavity Ⅰ. Lips Alimentary canal: • is the commencement of the alimentary canal • communicates with the exterior by the oral fissure anteriorly and pharynx by the isthmus of fauces posteriorly • is divided into oral vestibule & oral cavity proper
Parotid ductⅡ.CheeksPapilla of parotid duct @ opening of the parotid duct: opposite the 2nd molar tooth of the maxilla
Papilla of parotid duct ① • opening of the parotid duct • opposite the 2 nd molar tooth of the maxilla Ⅱ. Cheeks Parotid duct ①
Ⅲ.PalateHard + Soft palateIsthmusoffauces3①uvula② free margin of the palatine velum③palatoglossalarch@ root of tongue· is the narrowest place of the oral cavity. is the outlet of the oral cavity
Isthmus of fauces Ⅲ. Palate Hard + Soft palate ① uvula ② free margin of the palatine velum ③ palatoglossal arch ④ root of tongue ① ③ • is the narrowest place of the oral cavity • is the outlet of the oral cavity
IV.Palatinetonsils·the lymphoid tissue located on the side of the oropharynxTeeth·DeciduousteethIncisor.Permanentteeth
Ⅴ. Teeth Incisor Ⅳ. Palatine tonsils • the lymphoid tissue located on the side of the oropharynx • Deciduous teeth • Permanent teeth