heart and blood - Axtarish в Google
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Blood flows through your heart, lungs and body in a series of steps. It delivers oxygen and nutrients to all your organs and tissues and removes waste.
22 авг. 2024 г. · The heart has four chambers and four valves. The top two chambers (atria) receive blood and the bottom two (ventricles) pump blood out. The ... How Does the Heart Work? · Parts of the Heart
The heart is a large, muscular organ that pumps blood filled with oxygen and nutrients through the blood vessels to the body tissues.
The circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or ...
24 мар. 2022 г. · Adding oxygen to blood. Oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava.
5 окт. 2022 г. · The heart is a large muscular organ which constantly pushes oxygen-rich blood to the brain and extremities and transports oxygen-poor blood ...
Продолжительность: 3:01
Опубликовано: 19 июн. 2013 г.
With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After delivering the oxygen, the blood returns to the heart.
The human heart works like a pump sending blood around your body. It's a muscle, about the size of your fist, in the middle of your chest tilted slightly to ...
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