Direction of blood flow in the heart

Everyone's heartbeat is working normally every minute. The heart's work is a circulatory system. Blood flows into the heart from the whole body and then flows out of the heart. This is a very regular process. The direction of blood flow in the heart is determined by everyone. Blood enters the ventricle from the atrium, and then is filtered through the alveoli from the ventricular artery, transporting the blood to the entire body, enabling the body to function normally. The following is a detailed introduction to the direction of blood flow in the heart.

Blood flows from the right atrium into the right ventricle, from the right ventricle into the pulmonary artery, and then into the lungs to complete gas exchange. Blood flows from the lungs into the left atrium, and then from the left atrium into the left ventricle. Blood is ejected from the left ventricle to the aorta and into various organs throughout the body. After completing gas exchange, it flows from various organs into the right atrium, and this process is repeated.

The heart is one of the organs of vertebrates. It is the driving force in the circulatory system. The human heart is basically the same size as one's fist, shaped like a peach, with the apex leaning to the left. Located above the diaphragm, between the mediastinum, in the lower left part of the middle of the chest cavity, between the two lungs and to the left. It is mainly composed of myocardium and has four chambers: left atrium, left ventricle, right atrium, and right ventricle. The left and right atria and the left and right ventricles are separated by septa, so they are not connected to each other. There are valves (atrioventricular valves) between the atria and ventricles. These valves prevent blood from flowing from the atria to the ventricles and not flowing back. [2]

The heart is a major organ in the circulatory system of higher animals. The main function is to provide pressure for blood flow and circulate blood to various parts of the body. The human heart is located in the lower left middle of the chest cavity. It is about the size of a fist and weighs about 250 grams. The cavities inside the heart are further divided into atria and ventricles. The atria receive blood returning to the heart from the veins, while the ventricles pump the blood out of the heart into the arteries. Mammals and birds have two atria and two ventricles; reptiles also have two atria and two ventricles, but the two ventricles are not completely separated; amphibians have two atria and one ventricle; and fish have only one atrium and one ventricle.