The human heart is a muscular organ that pumps blood throughout your body. Understanding its structure and the flow of blood through its chambers and
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What is the difference between arteries and veins connected to the heart?
Arteries carry blood away from the heart (aorta, pulmonary artery). Veins carry blood toward the heart (vena cava, pulmonary veins). Both are correctly labelled in a heart diagram.
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Why do doctors listen to heart sounds?
Heart sounds are produced by valve closure. Abnormal sounds (murmurs) can indicate valve dysfunction, which appears when chambers and valves are not working correctly as shown in the diagram.
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How does the septum prevent blood mixing?
The septum is a solid wall of muscle separating the left and right sides of the heart. It prevents oxygenated and deoxygenated blood from mixing, ensuring efficient oxygen delivery throughout the body.
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