Aorta Anatomy and Connections Quiz
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Questions and Answers

What important structure is the specialist registrar instructed to avoid injuring during ductus arteriosus ligation?

  • Descending aorta
  • Innominate artery (correct)
  • Pulmonary trunk
  • Coronary arteries

    • Where does the ascending aorta originate from?

  • Left third intercostal space
  • The arch of aorta
  • Right second costal cartilage
  • Left ventricle at the left sternal margin (correct)

    • Which artery lies on the right side of the pulmonary trunk?

  • Innominate artery
  • Coronary arteries
  • Descending aorta
  • Arch of aorta (correct)

    • What is the course of the arch of aorta?

    <p>Upwards, backwards, and to the left</p> Signup and view all the answers

    Which structure continues as the arch of aorta?

    <p>Ascending aorta</p> Signup and view all the answers

    Where does the arch of aorta terminate?

    <p>Right second costal cartilage</p> Signup and view all the answers

    Which vessel has branches known as right and left coronary arteries?

    <p>Ascending aorta</p> Signup and view all the answers

    What is the relation of the ascending aorta to the pulmonary trunk?

    <p>It lies on the right side of the pulmonary trunk.</p> Signup and view all the answers

    Where does the innominate (brachiocephalic) artery terminate?

    <p>Behind the right sternoclavicular joint</p> Signup and view all the answers

    Which artery is a branch of the innominate artery on the right side?

    <p>Common carotid artery</p> Signup and view all the answers

    Where does the common carotid artery terminate?

    <p>Opposite the disc between C3 and C4</p> Signup and view all the answers

    What is contained in the carotid sheath in the neck?

    <p>Common carotid artery, internal jugular vein, and vagus nerve</p> Signup and view all the answers

    Where does the external carotid artery terminate?

    <p>Behind the neck of the mandible</p> Signup and view all the answers

    What is the origin of the internal carotid artery?

    <p>A branch of the common carotid artery</p> Signup and view all the answers

    Which artery is not a branch of the arch of aorta?

    <p>Internal carotid artery</p> Signup and view all the answers

    Where does the common carotid artery pass through in the neck?

    <p>Inside the carotid sheath</p> Signup and view all the answers

    Where does the arch of azygos vein terminate?

    <p>Into the superior vena cava opposite the right second costal cartilage</p> Signup and view all the answers

    Which vessel passes through the diaphragm?

    <p>Inferior vena cava</p> Signup and view all the answers

    What is the ligamentum arteriosum a fibrous band connecting?

    <p>Arch of aorta and pulmonary trunk</p> Signup and view all the answers

    Where does the inferior vena cava terminate?

    <p>Into the right atrium opposite the right sixth costal cartilage</p> Signup and view all the answers

    What structure forms an arch in the thorax and ascends anteriorly?

    <p>Azygos vein</p> Signup and view all the answers

    During embryonic life, what is the ductus arteriosus called?

    <p>Ductus arteriosus</p> Signup and view all the answers

    What is the connection between the superior vena cava and inferior vena cava?

    <p>Ligamentum arteriosum</p> Signup and view all the answers

    Where does the ligamentum arteriosum connect?

    <p>Pulmonary trunk and aorta</p> Signup and view all the answers

    What structure represents the obliterated ductus arteriosus that was functioning in the embryo?

    <p>Ligamentum arteriosum</p> Signup and view all the answers

    Which nerve is a branch of the left vagus nerve and curves below the arch of aorta to lie behind the ligamentum arteriosum?

    <p>Left recurrent laryngeal nerve</p> Signup and view all the answers

    Which artery is the largest branch of the innominate artery?

    <p>Right common carotid artery</p> Signup and view all the answers

    Opposite which thoracic vertebra does the arch of aorta continue as the descending aorta?

    <p>Fourth thoracic vertebra (T4)</p> Signup and view all the answers

    Where does the pulmonary trunk originate from?

    <p>Right ventricle opposite the left third costal cartilage</p> Signup and view all the answers

    Which structure divides into right common carotid and right subclavian arteries?

    <p>Innominate artery</p> Signup and view all the answers

    What are the branches of the descending aorta?

    <p><strong>Esophageal arteries</strong> and <strong>diaphragmatic (phrenic) arteries</strong></p> Signup and view all the answers

    Where does the descending aorta continue as the abdominal aorta?

    <p><em>Opposite the twelfth thoracic vertebra (T12)</em></p> Signup and view all the answers

    What structure is formed by the union of the right and left innominate veins?

    <p>Superior vena cava</p> Signup and view all the answers

    Which artery originates from the arch of the aorta on the left side?

    <p>Left subclavian artery</p> Signup and view all the answers

    What divides the right subclavian artery into three parts as it reaches the neck?

    <p>Scalenus anterior muscle</p> Signup and view all the answers

    Where does the subclavian artery terminate on the right side?

    <p>Axillary artery</p> Signup and view all the answers

    Which vessel supplies blood to the brain after entering the skull?

    <p>Vertebral artery</p> Signup and view all the answers

    What is the termination point of the left innominate vein?

    <p>Superior vena cava</p> Signup and view all the answers

    Where does the right innominate vein terminate?

    <p>Superior vena cava</p> Signup and view all the answers

    Which structure originates as a branch of the innominate artery on the right side?

    <p>Brachiocephalic trunk</p> Signup and view all the answers

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