They empty the submandibular (submaxillary) and sublingual salivary glands. He also described the ducts of the submaxillary salivary glands. Larger prey items can be subdued by the toxic secretions from its submaxillary glands. Submaxillary and cervical lymph nodes sometimes enlarge and the neck is swollen. Each species possesses mucin-secreting submaxillary glands. In some texts the chinshields are referred to as "submaxillary" scales. Sometimes the term submaxillary space is used synonymously with submandibular space. There is also another minor jugular vein, the anterior jugular vein, draining the submaxillary region. These include lacrimal, parotid, submaxillary, sublingual, preputial and mammary glands.