Which side of the heart directs blood to the lungs? A.left B. right C. both right and left
Which side of the heart directs blood to the lungs?
The heart is a muscular organ located slightly toward the left side of the breastbone. It is the main organ of the circulatory system and is responsible for pumping blood into the blood vessels. The size of the heart is approximately equivalent to the size of fist The specialized cells of the heart include cardiomyocytes and pacemaker cells. The rhythm at which the heart is pumped is controlled by the pacemaker cells. These cells have the ability to get excited and generate current that causes the contraction of the heart, thereby pumping the blood into the vessels. The human heart consists of four chambers to prevent mixing of oxygenated and deoxygenated blood. The two upper chambers are called right atrium and left atrium, whereas the two lower chambers are called right ventricle and left ventricle.
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