Heart: Anatomy & Function - Cleveland Clinic
2024年1月26日 · Your heart’s main function is to move blood throughout your body. Blood brings oxygen and nutrients to your cells. It also takes away carbon dioxide and other waste so other organs can dispose of them. Your heart also: Controls the rhythm and speed of your heart rate. Maintains your blood pressure.
How Blood Flows Through the Heart & Body - Cleveland Clinic
Your heart is a powerful muscle that pumps oxygen-rich blood out to your body. Once it leaves your heart, this blood flows through many blood vessels to reach every part of your body, from the major organs (like your brain) to the smallest tissues at the tips of your toes.
Circulatory System: Anatomy and Function - Cleveland Clinic
2021年9月21日 · The circulatory system includes the heart and blood vessels. Your heart sends blood to the lungs for oxygen. It pumps oxygen-rich blood to the rest of the body.
Great Vessels of the Heart: Anatomy & Function - Cleveland Clinic
2022年10月11日 · The great vessels of the heart are major blood vessels that connect directly to your heart. These arteries and veins circulate blood between your heart and lungs , and between your heart and the rest of your body.
What Blood Tests Detect Heart Problems? - Cleveland Clinic
2022年8月31日 · Your healthcare provider may order blood and urine lab tests to determine your risk of heart and blood vessel disease. Certain results, like high levels of low-density lipoprotein (LDL), indicate a higher risk of heart disease.
Blood Tests for Heart Disease - Cleveland Clinic
2021年11月26日 · Cardiac blood tests help your healthcare provider determine your risk of getting heart and blood vessel diseases. Your provider will consider your test results and look at your family history and your own health history to calculate your risk.
How Your Circulatory System Works - Cleveland Clinic
2024年9月4日 · Your blood vessels work with your heart and lungs to continuously move blood through your body. Here’s how: Your heart’s right ventricle sends blood that’s low in oxygen (oxygen-poor blood) to your lungs. Blood travels through the pulmonary trunk (the main pulmonary artery). Your blood picks up oxygen in your lungs.
How Your Cardiovascular System Works - Cleveland Clinic
2021年9月13日 · The cardiovascular system (your heart and blood vessels) supplies your body’s organs with oxygen and nutrients so your organs can do their jobs. Your blood vessels also carry carbon dioxide and other waste away for disposal.
Troponin Test: What it Is and Normal Range - Cleveland Clinic
2022年3月17日 · A troponin test looks for certain types of the protein troponin, in your bloodstream. Those types of troponin only occur in heart muscle cells and only enter your blood because of heart muscle damage. That makes troponin invaluable in diagnosing heart attacks and other heart-related problems.
4 Heart Valves: What They Are and How They Work - Cleveland …
As your heart pumps blood, four valves open and close to make sure blood flows in the correct direction. As they open and close, they make two sounds that create the sound of a heartbeat. The four valves are the aortic valve, mitral valve, pulmonary valve and tricuspid valve.