Lymphatic drainage of oropharynx is mainly through
Lymphatics from oropharynx drain into the upper jugular chain, paicularly the jugulodigastric ( tonsilar) node. Some pas drain to the posterior cervical group also. The base of the tongue may drain bilaterally. Lymphatic drainage of the nasopharynx - upper deep cervical nodes. (Ref: Diseases of Ear, Nose and Throat, PL Dhingra; 7th edition, pg no. 271)
Superficial cervical lymph nodes
Submandibular nodes
Jugulodigastric nodes
Jugulo-omohyoid nodes
Pharynx