The Amazing Human Heart The human heart is a remarkable organ, often referred to as the body’s engine. About the size of a fist, this muscular pump plays a critical role in circulating blood throughout the body. On average, the heart beats approximately 60 to 100 times per minute, providing a continuous supply of oxygen … Read more
The Biological Function of Breathing Breathing is a fundamental biological process that primarily serves the purpose of facilitating the exchange of gases—specifically, oxygen and carbon dioxide—within the body. This essential function is carried out by the respiratory system, which consists of various anatomical structures including the nasal cavity, trachea, bronchi, lungs, and diaphragm. Together, these … Read more
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