visceral lymph node, a small oval nodular gland that filters lymph circulating in the lymphatic vessels of the thoracic, abdominal, and pelvic viscera. The visceral lymph nodes of the thorax include the anterior mediastinal nodes, posterior mediastinal nodes, and tracheobronchial nodes. The visceral lymph nodes of the abdomen and pelvis include those that follow the course of the celiac artery, superior mesenteric artery, and inferior mesenteric artery. Compare parietal lymph node. See also lymph, lymphatic system, lymph node.
