| inferior epigastric lymph nodes | Three or four nodes placed along the inferior epigastric vessels; they receive afferents from the lower abdominal wall and empty into the external iliac nodes. Synonym: nodi lymphatici epigastrici inferiores. (05 Mar 2000) |
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| inferior mesenteric lymph nodes | Nodes located along the inferior mesenteric artery and its branches that drain the upper part of the rectum, the sigmoid colon, and descending colon. Synonym: nodi lymphatici mesenterici inferiores. (05 Mar 2000) |
| inferior phrenic lymph nodes | Small lymph nodes associated with the inferior phrenic vessels. Synonym: nodi lymphatici phrenici inferiores. (05 Mar 2000) |
| inferior tracheobronchial lymph nodes | Several large lymph nodes inferior to the tracheal bifurcation; they receive afferents from the bronchopulmonary nodes and the heart, and send efferents to the superior tracheobronchial and tracheal nodes. Synonym: nodi lymphatici tracheobronchiales inferiores, bifurcation lymph nodes, carinal lymph nodes. (05 Mar 2000) |
| infra-auricular deep parotid lymph nodes | Small lymph nodes located deep to the parotid fascia and below the ear. Synonym: nodi lymphatici parotidei profundi infra-auriculares, infra-auricular subfascial parotid lymph nodes. (05 Mar 2000) |
| infra-auricular subfascial parotid lymph nodes | Small lymph nodes located deep to the parotid fascia and below the ear. Synonym: nodi lymphatici parotidei profundi infra-auriculares, infra-auricular subfascial parotid lymph nodes. (05 Mar 2000) |
| intercostal lymph nodes | One or two small nodes located posteriorly in each intercostal space; they receive lymph from the parietal pleura, intercostal space, and posterior body wall; the nodes in the upper spaces empty into the thoracic duct; the nodes in the lower spaces form a descending intercostal trunk that opens into the cisterna chyli. Synonym: nodi lymphatici intercostales. (05 Mar 2000) |
| interiliac lymph nodes | Several lymph nodes located between the external and internal iliac arteries and the obturator artery; these nodes are considered by some to be part of the medial external iliac nodes. Synonym: nodi lymphatici interiliaci. (05 Mar 2000) |
| intermediate lumbar lymph nodes | The chain of lymph nodes located between the aorta and the inferior vena cava. Synonym: nodi lymphatici lumbales intermedii, lumbar lymph nodes. (05 Mar 2000) |
| internal iliac lymph nodes | Nodes that lie along the internal iliac artery and its branches; they receive lymph from the pelvic viscera, the gluteal region, and the deep parts of the perineum, and send efferent vessels to the common iliac nodes. Synonym: nodi lymphatici iliaci interni. (05 Mar 2000) |
| interpectoral lymph nodes | Small lymph nodes located between the pectoralis major and minor muscles; they receive lymph from the muscles and the mammary gland, and deliver lymph to the axillary lymphatic plexus. Synonym: nodi lymphatici interpectorales. (05 Mar 2000) |
| intraglandular deep parotid lymph nodes | Small lymph nodes of the deep parotid group lying within the parotid gland. Synonym: nodi lymphatici parotidei intraglandulares, intraglandular parotid lymph nodes. (05 Mar 2000) |
| intraglandular parotid lymph nodes | Small lymph nodes of the deep parotid group lying within the parotid gland. Synonym: nodi lymphatici parotidei intraglandulares, intraglandular parotid lymph nodes. (05 Mar 2000) |
| obturator lymph nodes | Nodes of the internal iliac group located along the obturator artery. Synonym: nodi lymphatici obturatorii. (05 Mar 2000) |
| occipital lymph nodes | One or two small nodes along the occipital vessels close to the trapezius muscle that receive afferents from the posterior scalp and drain into the superior deep cervical nodes. Synonym: nodi lymphatici occipitales. (05 Mar 2000) |