Explain structure and function of heart in a brief 2 mins video
视频信息
答案文本
视频字幕
The heart is one of the most important organs in your body. Located in the center of your chest, slightly to the left, it works as a powerful muscular pump. Every single day, your heart beats about 100,000 times, pumping approximately 2,000 gallons of blood through your circulatory system. This continuous pumping action is what keeps you alive by delivering oxygen and nutrients to every cell in your body.