Advanced Pericardiacophrenic Artery Quiz

Q1. Which relationship helps distinguish the phrenic neurovascular bundle from the vagus nerve at the lung root?

• It passes posterior to the lung root
• It remains above the lung root
• It passes through the lung root
• It passes anterior to the lung root

Q2. Why may the pericardiacophrenic artery be encountered during pericardial surgery?

• It passes through the aortic valve
• It runs inside the coronary sinus
• It lies within the myocardium
• It courses along the pericardium

Q3. Which accompanying structure is particularly important to protect when operating near the pericardiacophrenic artery?

• Greater splanchnic nerve
• Recurrent laryngeal nerve
• Phrenic nerve
• Thoracic duct

Q4. Injury to the nerve accompanying the pericardiacophrenic artery can impair which function?

• Tongue movement
• Pupillary constriction
• Diaphragmatic contraction
• Finger flexion

Q5. Which structures form the corridor containing the pericardiacophrenic artery and phrenic nerve?

• Aorta and vertebral column
• Mediastinal pleura and fibrous pericardium
• Sternum and skin
• Trachea and esophagus

Q6. Which arterial network receives a contribution from the pericardiacophrenic artery near the diaphragm?

• Circle of Willis
• Plantar arterial arch
• Diaphragmatic arterial network
• Palmar arterial arch

Q7. Which feature best distinguishes the pericardiacophrenic artery from the musculophrenic artery?

• It supplies anterior intercostal spaces seven through nine
• It follows the costal margin
• It arises directly from the thoracic aorta
• It accompanies the phrenic nerve

Q8. Which combination best represents the principal territories of the pericardiacophrenic artery?

• Brain, meninges, and scalp
• Pericardium, mediastinal pleura, and diaphragm
• Liver, spleen, and pancreas
• Kidney, ureter, and bladder

Q9. Why does the pericardiacophrenic artery provide a useful landmark for the phrenic nerve?

• The artery and nerve descend together
• They occupy opposite sides of the thorax
• The nerve travels inside the artery
• The artery crosses the nerve only in the neck

Q10. Which description best summarizes the pericardiacophrenic artery?

• Thoracic aortic branch supplying the spinal cord
• Internal thoracic branch accompanying the phrenic nerve
• Coronary branch supplying the myocardium
• Pulmonary branch supplying the bronchi