The heart pumps blood around the body to ensure your body has enough blood in your body otherwise you can die instantly.
The heart is an automated, muscular machine that uses muscles to pump blood. The heart has 4 chambers and valves. The top chambers pull blood into the heart, and the lower chambers push it out. The valves keep the blood moving in only one direction so the heart can work. If the blood tries to go both ways, pumping doesn't occur. The natural pacemaker that is a branch of the vagus nerve is what slows down the heart and regulates the speed. One side of the heart pulls oxygenated blood from the lungs and send it to the body starting with the aorta (the largest artery). The other side of the heart pulls the stale blood from the vena cava (the largest vein) and sends it to the lungs.
All of your organs are involved with the heart. The heart pumps blood to all the organs in your body.
a but a but
Heart and lung endurance is how effectively your heart and lungs work when you exercise and how quickly they return to normal when you stop.
no the heart resives an electrical signal from the brain causing the mucle to flex
because there lung and heart don't work propely
diastole
Crazy Heart (2009) is rated R for language and brief sexuality.
Crazy Heart (2009) is rated R for language and brief sexuality.
Crazy Heart is rated R for language and brief sexuality.
A research paper is a brief report of research work based on
short story
a brief rush
Work of Heart was created in 1982.
Work bag, brief case, work carrier.
How the Heart and Circulatory system work.
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