Anatomy study note · Thorax
Mediastinal and tracheobronchial lymph nodes
Nodes along the airways and in the mediastinum that drain the lungs, trachea and mediastinal organs into the bronchomediastinal trunks and thoracic duct.
Key points
- Pulmonary → bronchopulmonary (hilar) → tracheobronchial → bronchomediastinal trunk.
- Trachea → pre- and paratracheal nodes.
- Enlarged left nodes → recurrent laryngeal palsy.
- Mediastinoscopy for staging.
- Lymph sacs → lymph nodes (except cisterna chyli).
- Node: cortex (B-cell nodules) / paracortex (T cells, HEVs) / medulla.
- Afferent in at the convex side, efferent out at the hilum.
The full note in the atlas also covers
Features · Histology · Development · Clinical notes
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Written from
- Snell’s Clinical Anatomy by Regions, 10th ed., ch. 5, PDF pp. 551, 584–585, 650–651
- Inderbir Singh’s Human Embryology, ch. 15, PDF pp. 275–276
- BRS Cell Biology & Histology, 7th ed., ch. 12, PDF pp. 223–224
More from the thorax
- Mitral valve
- Pulmonary trunk
- Pulmonary valve
- Pulmonary veins
- Ribs
- Right atrium
- Right coronary artery
- Right ventricle
- Serratus posterior muscles
- Sternum
- Superior vena cava
- Sympathetic trunk
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