Web20 jul. 1998 · heart, organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving chambers (atria) and a main pumping chamber (ventricle), as in mollusks. … Other articles where heart valve is discussed: cardiovascular disease: … diastole, in the cardiac cycle, period of relaxation of the heart muscle, … ventricle, muscular chamber that pumps blood out of the heart and into the … systole, period of contraction of the ventricles of the heart that occurs … atrium, in vertebrates and the higher invertebrates, heart chamber that … Abnormalities of the heart chambers may be serious and even life-threatening. In … coronary heart disease, also called coronary artery disease or ischemic … heart rate, also called pulse rate, the number of times the ventricles of the … WebWhat is the heart? The heart is a muscular organ that sits inside the rib cage, behind and just to the left of the breastbone. It pumps blood around the body to supply tissues with nutrition and oxygen. The heart pumps blood to the lungs, where it absorbs oxygen. This oxygen-rich blood then returns to the heart to be pumped to the rest of the ...
How Your Cardiovascular System Works - Cleveland Clinic
WebThe channel through which blood enters and moves through the human heart include two circuits – a pulmonary circuit and a systemic circuit. Besides these, the heart also contains four valves – tricuspid valve, … Web30 mei 2024 · The heart is a muscular organ in the chest, right behind and to the left of the breastbone. It is the size of a closed fist. The main function of the heart is to pump blood to all parts of the body through a network of blood vessels called the arteries and veins. The heart and the network of blood vessels together make the cardiovascular system. how do i get my printer to print on two sides
Circulatory System: Function, Organs, Diseases - Healthline
Web28 jul. 2024 · The heart is a complex organ that pumps blood throughout the body. It sits in the chest, slightly left of center, behind the breastbone, and between the lungs. A heart that is not healthy does... Web17 feb. 2024 · Your circulatory or cardiovascular system serves a vital function by delivering oxygen and nutrients to all the organs and tissues of your body. Learn more … Web16 okt. 2024 · The cardiovascular system consists of the heart, arteries, veins, and capillaries. The heart and vessels work together intricately to provide adequate blood … how do i get my printer to print online