frenulum plexus around facial artery secretomotor supply submandibu submandibular lymph node marginal mandibular nerve facial artery bimanual palpation lymphatic of submandibular gla nerve supply of submandibular blood supply of submandibular reason for submandibular stone whartons duct submandibular duct surfaces of submandibular glan submandibular surgery risks submandibular tumor parts of submandibular gland salivary stones floor of mouth content submandibular salivary gland greater auricular nerve skin and soft tissue of cheek relation of parotid gland parotid gland lasts anatomy external carotid artery in par retromandibular vein parotid sialogram facial nerve invasion nerve supply of parotid gland blood supply of parotid accessory parotid stensen duct parotid duct facial nerve parotid relations parotid tumors pleomorphic adenoma raised ear lobe cheek pain parotiditis
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