Advanced Thoracic Lymph Nodes Quiz

Q1. Why are tracheobronchial lymph nodes clinically important in lung malignancy?

• They provide motor innervation to bronchi
• They supply arterial blood to the lungs
• They produce pulmonary surfactant
• They receive major lymphatic drainage from the lungs

Q2. Why can lymphatic spread from a lung cross to nodes on the opposite side?

• The lungs share a common bronchus
• The pleural cavities are directly continuous
• Thoracic lymphatic pathways cross the midline
• Pulmonary arteries carry lymph

Q3. Which nodal group is located at the transition between intrapulmonary and extrapulmonary lymphatic drainage?

• Diaphragmatic lymph nodes
• Parasternal lymph nodes
• Bronchopulmonary lymph nodes
• Intercostal lymph nodes

Q4. Which nodal group is most directly associated with the carina?

• Pulmonary lymph nodes
• Intercostal lymph nodes
• Inferior tracheobronchial lymph nodes
• Parasternal lymph nodes

Q5. Which thoracic nodal pathway is particularly relevant to spread from medial breast tissue?

• Paratracheal pathway exclusively
• Pulmonary lymphatic pathway
• Parasternal lymphatic pathway
• Bronchopulmonary pathway

Q6. Which feature makes intercostal lymph nodes clinically relevant to posterior pleural disease?

• They drain visceral pleura exclusively
• They receive lymph from posterior costal pleura
• They lie inside pulmonary tissue
• They supply pleural arteries

Q7. Which feature makes diaphragmatic lymph nodes relevant to thoracoabdominal disease spread?

• They directly connect the aorta and vena cava
• They drain only the upper limbs
• They prevent lymph from crossing the diaphragm
• They participate in transdiaphragmatic lymphatic connections

Q8. Which major lymphatic trunks collect much of the lymph leaving central thoracic nodes?

• Sacral trunks
• Intestinal trunk
• Lumbar trunks
• Bronchomediastinal trunks

Q9. Which sequence best represents a major lymphatic route from lung parenchyma?

• Parasternal, intercostal, pulmonary, lumbar
• Pulmonary, bronchopulmonary, tracheobronchial, bronchomediastinal
• Intercostal, inguinal, pulmonary, intestinal
• Diaphragmatic, pulmonary, axillary, jugular

Q10. Which description best summarizes the thoracic lymph nodes?

• Nodes draining only the thoracic wall
• Nodes confined to the anterior mediastinum
• Nodes draining only the lungs
• Interconnected nodes draining thoracic walls and viscera