| 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) |
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| 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) |
| nodus tibialis anterior | A small inconstant lymph node in front of the interosseous membrane along the upper part of the anterior tibial vessels. Synonym: nodus tibialis anterior, anterior tibial node. (05 Mar 2000) |
| nodus tibialis posterior | A small inconstant lymph node located along the course of the posterior tibial artery. Synonym: nodus tibialis posterior, posterior tibial node. (05 Mar 2000) |