淋巴系统 The Lymphatic System

Composition Lymphatic vessel Lymphatic organ Lymphatic tissue Lymphatic capillary Lymphatic vessels: two sets, superficial and deep Lymphatic trunks: 9 Lymphatic ducts: thoracic duct 胸导管, right lymphatic duct 右淋巴导管 Lymphatic organ Lymphatic nodes Tonsil 扁桃体, spleen 脾, thymus 胸腺 Lymphatic tissue

The Lymphatic System Heart Vein Lymphatic duct Artery Lymphatic trunk Capillaries Lymphatic node Lymphatic capillary Cell Tissue fluid Lymphatic vessel

Lymphatic capillary Begin blindly The wall is composed of a single layer of overlapping endothelial cells

Lymphatic capillary Lymph is driven by contraction of surrounding muscles, aided by valves which enable one-way flow to the neck.

lymph nodes 浅淋巴结 深淋巴结 淋巴结门 输入淋巴管 输出淋巴管 功能： 滤过淋巴 产生淋巴细胞 进行免疫应答

lymphatic trunks right and left jugular trunks right and left subclavian trunks right and left bronchomediastinal trunks right and left lumbar trunks intestinal trunk

Lymphatic duct thoracic duct Left venous angle 胸 导 管 左颈干 ：左半头颈部的淋巴 胸 导 管 左颈干 ：左半头颈部的淋巴 左锁骨下干：左上肢及左半部 分胸壁的淋巴的一部分淋巴 左支气管纵隔干 ：左胸腔器官 的淋巴和部分胸腹壁淋巴 乳糜池 肠干：腹腔淋巴结、肠系膜上、下淋巴结 左、右腰干：收纳盆部及双下肢的淋巴 ※ cisterna chyli乳糜池：T1前，囊状膨大，接受左右腰干和肠干 ※ 简述胸导管的起始、行程、注入部位及其收集范围

Lymphatic duct right lymphatic duct右淋巴导管 右 静 脉 角 右 淋 巴 导 管 右 静 脉 角 右 淋 巴 导 管 右颈干： 右半头颈部的淋巴 右锁骨下干：右上肢及右胸部 右支气管纵隔干：右胸腔器官的淋巴和部 分胸腹壁淋巴

Lymphatic drainage of head and neck 头部淋巴结 颈部淋巴结 * 颈外侧下深淋巴结的输出淋巴管合成颈干

Lymphatic drainage of upper limbs 肘淋巴结 cubital lymph node 锁骨下淋巴结 Infraclavicular node 腋淋巴结 Axillary lymph node 外侧淋巴结 胸肌淋巴结 肩胛下淋巴结 中央淋巴结 腋尖淋巴结 锁骨下干

Lymphatic drainage of thorax 胸 壁 淋 巴 结 胸腔器官淋巴结

Lymphatic drainage of lower limbs 腘 淋 巴 结 腹股沟浅淋巴结 腹股沟深淋巴结

Lymphatic drainage of pelvis 髂内淋巴结 internal iliac lymph node 骶 淋 巴 结 sacral lymph node 髂外淋巴结 external iliac lymph node 髂总淋巴结 common iliac lymph node

Lymphatic drainage of abdomen 腹壁淋巴结 腰淋巴结 腹腔器官淋巴结 沿肠系膜上、下动脉及其分支排列的淋巴结 沿腹腔干及其分支排列的淋巴结

Thymus Featrues Consists of two elongated lobes a large organ in the fetus Occupies the thoracic cavity behind the sternum Secrete lymphopoietin, maturation T-lymph cells

Spleen Shape Location: The largest single mass of lymphoid tissue in the body Reddish in color Location: lies between stomach and diaphragm, deep to the 9th to 11th rib its long axis corresponds roughly to the 10th rib Its lower pole extends forward only as far as the midline and cannot be palpated on clinical examination

Spleen Two surfaces Diaphragmatic: smooth, convex Visceral: concave, hilum of spleen Two borders Superior－has 2-3 splenic notch, which serve as a landmark on palpation when it is enlarge; normally it is not palpable Inferior－rounder Function： Erythrocyte storage储血 Phagocytosis吞噬 Cytopoiesis造血 Immune responses免疫反应

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