Anatomy and Physiology II Practice Test

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Study for the Anatomy and Physiology II Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready to ace your exam!

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The ventricles of the heart are separated into right and left sides by the ________.

Interventricular Septum
Atrioventricular Septum
Coronary Sulcus
Pericardium

The correct answer is: Interventricular Septum

The ventricles of the heart are indeed separated into right and left sides by the interventricular septum. This septum is a thick wall of muscle that prevents the mixing of oxygen-rich blood from the left ventricle with oxygen-poor blood from the right ventricle. By maintaining this separation, the interventricular septum plays a crucial role in ensuring that the circulatory system functions efficiently. The right ventricle pumps deoxygenated blood to the lungs for oxygenation, while the left ventricle pumps oxygenated blood to the rest of the body. In contrast, the atrioventricular septum refers to the partition between the atria and ventricles, which plays a different role in the heart’s structure. The coronary sulcus is a groove that marks the boundary between the atria and ventricles but does not function as a wall to separate them. The pericardium is the protective sac surrounding the heart, and while it supports the heart's position, it does not create a separation between the ventricles.