ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The heart has four ____ that are enclosed by thick, muscular walls.
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alveoli
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capillaries
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chambers
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ventricles
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arteries
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Explanation:
Detailed explanation-1: -There are 4 chambers that make up the heart – 2 on the left side and 2 on the right. The 2 small upper chambers are the atria. The 2 larger lower chambers are the ventricles. These left and right sides of the heart are separated by a wall of muscle called the septum.
Detailed explanation-2: -The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of the heart.
Detailed explanation-3: -The wall of the heart consists of three distinct layers-the epicardium (outer layer), the myocardium (middle layer), and the endocardium (inner layer).
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