In the mammalian heart, the systemic and pulmonary circuits ____.
A) carry only oxygenated and deoxygenated blood, respectively
B) carry only deoxygenated and oxygenated blood, respectively
C) mix during times of stress
D) intermix freely
E) are completely separate

Question

Quizplus · Accepted Answer

The systemic and pulmonary circuits in the mammalian heart are completely separate, with the systemic circuit carrying oxygenated blood from the heart to the body and the pulmonary circuit carrying deoxygenated blood from the heart to the lungs.

In the Mammalian Heart, the Systemic and Pulmonary Circuits ____