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NREMT Advanced EMT Practice Test #4

Category - EMT-I/99

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What does the aortic arch and the ligamentum arteriosum hold?

Ribs
Sternum
Heart
Stomach

Explanation

Answer - C - The aortic arch and the ligamentum arteriosum holds the heart in suspension in the chest. The ligamentum arteriosum is the remnant of the fetal vessel that connected the pulmonary artery to the aorta. At birth, this vessel closes to redirect blood flow to the lungs.

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