Which veins unite to form the superior vena cava?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Discover high-yield NBME Gross Anatomy concepts with quizzes designed to enhance your understanding. Equip yourself with flashcards, multiple-choice questions, and detailed explanations. Prepare effectively for your anatomy exam!

Multiple Choice

Which veins unite to form the superior vena cava?

Explanation:
The venous channel that returns blood from the head, neck, and upper limbs to the heart is formed by the union of the right and left brachiocephalic veins. Each brachiocephalic vein itself is made by the junction of the internal jugular and subclavian veins on its side. The left brachiocephalic vein crosses the midline to join the right one behind the sternum, and together they form the superior vena cava, which then drains into the right atrium. The azygos system contributes to the SVC as a tributary, but it does not form it, and the internal jugular or subclavian veins alone do not form the SVC—they must unite as the brachiocephalic veins first.

The venous channel that returns blood from the head, neck, and upper limbs to the heart is formed by the union of the right and left brachiocephalic veins. Each brachiocephalic vein itself is made by the junction of the internal jugular and subclavian veins on its side. The left brachiocephalic vein crosses the midline to join the right one behind the sternum, and together they form the superior vena cava, which then drains into the right atrium. The azygos system contributes to the SVC as a tributary, but it does not form it, and the internal jugular or subclavian veins alone do not form the SVC—they must unite as the brachiocephalic veins first.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy