The deep parotid lymph nodes are lymph nodes found below the parotid gland.Superficial lymph glands and lymphatic vessels of head and neck. The deep parotid lymph nodes are lymph nodes found below the parotid gland. The afferents of the subparotid glands drain the nasal part of the pharynx and the posterior parts of the nasal cavities. Their efferents pass to the superior deep cervical glands. This article incorporates text in the public domain from page 693 of the 20th edition of Gray's Anatomy (1918)