![]() ![]() Blood is delivered back to the right side of the heart by the large vein called the vena cava. This blood is also relatively high in carbon dioxide, which is a product of metabolism in the tissues.This blood is relatively low in oxygen because most of it has already been delivered to different organs and tissues. ![]() The path of blood through the heart begins with the right atrium receiving blood, which has circulated through most of the body.The aorta is the largest artery in the body, which delivers the blood to the rest of your body. The left ventricle pumps blood to the rest of your body through the aorta, with blood passing through to theaortic valve. The left atrium receive blood from the lungs and pushes it through the mitral valve to pass it into the left ventricle. Blood returns to the heart through the pulmonary veins, which go into the left chambers. Blood circulates in the lungs, where oxygen (O2) is added to the bloodand carbon dioxide (CO2) is removed. The pulmonary arteries distribute blood to the lungs. The right ventricle receives blood from the right atrium and pumps it to the lungs through the pulmonary arteries, which are guarded by another valve called the pulmonic valve. ![]() Valves are structures that make sure there is a one-way forward flow, thus keeping the blood from passing backward. Blood from the body goes back to the heart via the right atrium.From the right atrium, blood will then pass through a valve called the tricuspid valve, to go to the next chamber. On each side of the heart, there are one atrium and one ventricle. There are two upper chambers called atria and two lower chambers called ventricles. The heart can be divided into right and left halves, as well as into the upper and lowerĬhambers. Here are the basic parts of the heart: 1. Understanding the function of the heart is helpful to learn more about its anatomy. Before blood flows to the various parts of the body, it circulates in the heart and passes through the lungs.In this article, we will describe thepath of blood through the heart and discuss the function of the heart as part of the circulatory system. In the heart, the two circuits of the circulatory system (pulmonary and systemic circulation) converge. The heart is made of four chambers which receive and pump blood. The path of blood through the heart also makes up a major part of the circulation because the heart also needs to be nourished, and this is where both oxygenated and deoxygenated blood flow. As the heart contracts, it pumps blood into your blood vessels, which then circulate the blood to the body before it goes back again to the heart. This sequence is repeated, which enables blood to be pumped continuously to the heart, lungs, and body.The circulatory system, also called the cardiovascular system, is responsible for distributing nutrients and oxygen to different parts of the body, with the heart working as the pump. Blood exits the heart through an aortic valve, through the aorta, and then through the body. Blood exits the heart through the pulmonary valve. Oxygen and carbon dioxide molecules migrate into and out of tiny airbags in the lungs, through capillary walls, via the blood. This prohibits the backflow of blood into the atria as the ventricles contract (squeeze). Whenever the ventricles are full, the mitral valve closes down. Blood passes through the open valve from the left atrium to the left ventricle. This inhibits the backflow of blood into the atria as the ventricles contract (squeeze). The heart valves shut whenever the ventricles are finished. Blood goes via the open tricuspid from the right atrium to the right ventricle. The pulmonary vein expels oxygen-rich blood from the lungs to the left atrium. The heart has a dual pump function which carries blood away from and returning to it.Ĭomplete answer: Initially, blood reaches the heart from two large veins, the inferior and also the superior vena cava, flushing oxygen-poor blood from the body to the right atrium. Hint: The heart is a primarily hollow, muscular organ composed of cardiac muscles and connective tissue that works as a pump for the circulation of blood around the tissues of the body.
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