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淋巴结 (大小不一的圆形或椭圆形灰红色小体,一侧隆凸,另一侧凹陷,凹陷中央处为淋巴结门。凸侧有多条输入淋巴管注入,淋巴结门有神经和血管出入,并有输岀淋巴管穿岀。一个淋巴结的输岀淋巴管可成为另一个淋巴结的输入淋巴管。淋巴结多成群分布,数目不恒定,青年人有淋巴结400〜450个。淋巴结可按位置不同分为浅淋巴结和深淋巴结。淋巴结多沿血管排列,位于关节屈侧和体腔的隐藏部位,如肘窝、腋窝、腘窝、腹股沟、脏器门和体腔大血管附近。淋巴结的主要功能是滤过淋巴、产生淋巴细胞和进行免疫应答。淋巴结内的淋巴窦是淋巴管道的一个组成部分,故淋巴结对于淋巴引流起着重要作用) | |||
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LN | |||
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Very small organs of the lymphatic system. Lymph nodes are located in many areas of the body, mainly in the neck, under the arms, and in the groin. Lymph nodes play a crucial role in the immune system. When lymph is filtered through the lymph nodes, foreign substances are trapped and destroyed by the lymphocytes that line the walls of the lymph nodes. see also lymph, lymphatic system, lymphocyte |
lymph node : 327 phrases in 10 subjects |
Anatomy | 127 |
Animal husbandry | 4 |
Biology | 5 |
Dermatology | 4 |
Life sciences | 22 |
Nursing | 6 |
Otorhinolaryngology | 46 |
Plastic surgery | 5 |
Sports | 3 |
Surgery | 105 |