Innominate and Common Carotid Arteries Anatomy
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Questions and Answers

Where does the innominate (brachiocephalic) artery end?

  • Opposite the disc between C3 and C4
  • Behind the neck of the mandible
  • Behind the right sternoclavicular joint (correct)
  • Inside the parotid gland

What is the origin of the common carotid artery on the left side?

  • Behind the neck of the mandible
  • Branch of the arch of aorta (correct)
  • Opposite the disc between C3 and C4
  • Inside the parotid gland

Where does the external carotid artery end?

  • Behind the right sternoclavicular joint
  • Inside the parotid gland
  • Behind the neck of the mandible (correct)
  • Opposite the disc between C3 and C4

What does the carotid sheath contain?

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

Which artery is a branch of the common carotid artery?

<p>External carotid artery (C)</p> Signup and view all the answers

Where does the internal carotid artery ascend in the neck?

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

Which artery branches off the arch of the aorta on the left side?

<p>Subclavian artery (A)</p> Signup and view all the answers

What divides the subclavian artery into three parts in the neck?

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

Where does the subclavian artery terminate?

<p>Continues as the axillary artery (B)</p> Signup and view all the answers

Which vein originates from the union of internal jugular and subclavian veins behind the sternoclavicular joint?

<p>Innominate vein (B)</p> Signup and view all the answers

Where does the superior vena cava originate from?

<p>Union of right and left innominate veins (B)</p> Signup and view all the answers

What is the termination point of the left innominate vein?

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

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

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

Which artery divides into the right common carotid and right subclavian arteries?

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

Which artery 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 (B)</p> Signup and view all the answers

Opposite which thoracic vertebra does the descending aorta continue after termination?

<p>T12 (B)</p> Signup and view all the answers

Where does the pulmonary trunk originate from?

<p>Right ventricle opposite T4 (A)</p> Signup and view all the answers

Which artery ascends upwards and lies on the left side of the ascending aorta?

<p>Pulmonary trunk (A)</p> Signup and view all the answers

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