| nodus jugulo-omohyoideus | A lymph node of the lateral deep cervical group that lies above the intermediate tendon of the omohyoid muscle and anterior to the internal jugular vein; it receives lymphatic drainage from the submental, submandibular, and deep anterior cervical nodes; its efferent vessels go to other deep lateral cervical nodes. Synonym: nodus jugulo-omohyoideus, jugulo-omohyoid node. (05 Mar 2000) |
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| nodus lacunaris intermedius | A lymph node of the external iliac group located between the external iliac artery and vein at the vascular lacuna. Synonym: nodus lacunaris intermedius, intermediate lacunar node. (05 Mar 2000) |
| nodus lacunaris lateralis | A lymph node of the external iliac group located lateral to the external iliac artery at the vascular lacuna. Synonym: nodus lacunaris lateralis, lateral lacunar node. (05 Mar 2000) |
| nodus lacunaris medialis | A lymph node of the external iliac group located medial to the external iliac vein at the vascular lacuna. Synonym: nodus lacunaris medialis, medial lacunar node. (05 Mar 2000) |
| nodus ligamenti arteriosi | A lymph node of the anterior mediastinal group located adjacent to the ligamentum arteriosum. Synonym: nodus ligamenti arteriosi, lymph node of ligamentum arteriosum. (05 Mar 2000) |
| nodus lymphaticus | Synonym: lymph node. Origin: Lympho-+ L. Nodus, node (05 Mar 2000) |
| nodus lymphaticus arcus venae azygos | A lymph node of the posterior mediastinal group located adjacent to the arch of the azygos vein. Synonym: nodus lymphaticus arcus venae azygos. (05 Mar 2000) |
| nodus malaris | One of the facial lymph nodes located near the zygomatic minor muscle. Synonym: nodus malaris, malar node. (05 Mar 2000) |
| nodus mandibularis | One of the facial lymph nodes located by the facial artery near the point it crosses the mandible. Synonym: nodus mandibularis, mandibular nodes. (05 Mar 2000) |
| nodus nasolabialis | One of the facial lymph nodes located near the junction of the superior labial and facial arteries. Synonym: nodus nasolabialis, nasolabial node. (05 Mar 2000) |
| nodus rectalis medius | A lymph node along the middle rectal artery that receives afferents from the pararectal nodes and sends efferents to the internal iliac nodes. Synonym: middle rectal node, nodus rectalis medius. (05 Mar 2000) |
| nodus sinuatrialis | sinoatrial node |
| nodus sinuatrialis echo | A postectopic sinus beat occurring earlier than would be expected from the preceding sinus node discharge interval; i.e., the interval following a premature beat of supraventricular origin is less than the ordinary cycle length between sinus beats, whereas ordinarily the interval would be expected to exceed cycle length. (05 Mar 2000) |
| nodus suprapyloricus | A lymph node located above the pylorus. Synonym: nodus suprapyloricus, suprapyloric node. (05 Mar 2000) |
| nonreset nodus sinuatrialis | Nonreset of the sinoatrial node produced by a premature atrial depolarisaton when the sum of the duration of the premature cycle and the return cycle is fully compensatory, i.e., twice the duration of the spontaneous cycle length. Compare: reset nodus sinuatrialis. (05 Mar 2000) |