Multiple choice

In mammals the blood from the right auricle goes to the

  1. systemic aorta

  2. precavals

  3. truncus arteriosus

  4. pulmonary aorta
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In mammals, deoxygenated blood from the right atrium (auricle) enters the right ventricle, then is pumped to the lungs via the pulmonary artery (pulmonary aorta). This is part of pulmonary circulation. The systemic aorta carries oxygenated blood from the left ventricle.

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