Advanced Aorta Quiz

Q1. Which histological feature distinguishes the aorta from muscular arteries?

• Thick tunica media with elastic fibers
• Thin adventitia
• Absent endothelium
• Multiple internal elastic laminae

Q2. Which embryonic structure gives rise to the arch of the aorta?

• Truncus arteriosus
• Left fourth aortic arch
• Right fourth aortic arch
• Left second aortic arch

Q3. Which condition is characterized by narrowing of the aorta?

• Coarctation of the aorta
• Patent ductus arteriosus
• Ventricular septal defect
• Tetralogy of Fallot

Q4. Where does the thoracic aorta transition into the abdominal aorta?

• L1
• T8
• T10
• T12

Q5. Which layer of the aortic wall is mainly affected in an aortic dissection?

• Tunica intima
• Adventitia
• Tunica media
• Endocardium

Q6. Which artery arises first from the ascending aorta?

• Descending aorta
• Brachiocephalic trunk
• Right coronary artery
• Left subclavian artery

Q7. Which major unpaired branch arises from the abdominal aorta around L1?

• Renal artery
• Celiac trunk
• Inferior mesenteric artery
• Superior mesenteric artery

Q8. The ligamentum arteriosum connects which two structures?

• Pulmonary artery and aortic arch
• Pulmonary trunk and superior vena cava
• Left atrium and aortic arch
• Pulmonary vein and aortic arch

Q9. What is the primary cause of an aortic aneurysm?

• Autoimmune vasculitis
• Viral infection
• Weakening of aortic wall (atherosclerosis)
• Congenital heart block

Q10. Which part of the aorta is most commonly affected by aneurysms?

• Abdominal aorta below renal arteries
• Ascending aorta
• Thoracic aorta
• Aortic arch