The drainage is the same as for the internal jugular chain. Submandibular nodes are extra glandular and receive drainage from anterior face, flow of the mouth, anterior oral cavity, and submental nodal group. Drainage is to the high internal jugular chain. Parotid Nodal Group Intra or extra glandular nodes. Receives drainage from external artery canal, eustachian tube, adjacent skin, buccal mucosa.
Drainage is to high internal jugular chain.
Medial retropharyngeal receives drainage from nasal pharynx and oral pharynx and drains to high internal jugular chain. Drainage is the same as for the medial retropharyngeal nodes. Early sign of nasal pharyngeal cancer may be presence of abnormal lateral retropharyngeal node in the patient over forty. Follows the course of the external jugular vein. Receives drainage from skin and muscles of the anterior neck.