Advanced Superior Phrenic Arteries Quiz

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This quiz contains 10 questions. Click below to begin.

Q1. Which feature best distinguishes superior from inferior phrenic arteries?

  • Inferior phrenic arteries are veins
  • Their usual side of origin relative to the diaphragm
  • Superior phrenic arteries carry venous blood
  • Only superior phrenic arteries supply muscle

Q2. Why are superior phrenic arteries often small?

  • They supply only nerves
  • They carry blood only during inspiration
  • The diaphragm is avascular
  • The diaphragm has multiple arterial sources

Q3. Which arterial network allows collateral flow across the diaphragm?

  • Phrenic arterial anastomoses
  • Palmar arterial arches
  • Coronary sinus
  • Circle of Willis

Q4. Which artery supplies the diaphragm from below and commonly anastomoses with superior phrenic branches?

  • Inferior phrenic artery
  • Esophageal artery
  • Coronary artery
  • Bronchial artery

Q5. Which arterial source approaches the diaphragm alongside the phrenic nerve?

  • Superior phrenic artery
  • Subcostal artery
  • Pericardiacophrenic artery
  • Esophageal artery

Q6. Which artery reaches the diaphragm along the costal margin?

  • Left gastric artery
  • Bronchial artery
  • Musculophrenic artery
  • Vertebral artery

Q7. Why may superior phrenic arteries be encountered during surgery near the aortic hiatus?

  • They pass through the carotid sheath
  • They originate in the pelvis
  • They arise from the coronary sinus
  • They arise near the lower thoracic aorta

Q8. What can result from injury to a superior phrenic artery?

  • Portal vein thrombosis
  • Retinal detachment
  • Cerebral infarction
  • Local arterial bleeding

Q9. Which statement best describes the superior phrenic arterial pattern?

  • Branches of the pulmonary trunk
  • A single large terminal artery
  • Small paired vessels with variable branching
  • Veins draining the diaphragm

Q10. Which description best summarizes the superior phrenic arteries?

  • Visceral branches supplying the bronchi
  • Coronary branches supplying myocardium
  • Parietal branches supplying the superior diaphragm
  • Venous tributaries draining the diaphragm
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