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Jun 11, 2024 · Heart Anatomy in Basic Terms. The heart is a crucial organ that functions as the body's pump, ensuring blood circulation throughout the body. It consists of four main chambers: Left and right atria (upper chambers) Left and right ventricles (lower chambers) These chambers work in a coordinated manner to receive oxygen-poor blood, pump it to the ...
- Location and Size of The Heart
- Normal Heart Anatomy and Physiology
- How The Heart Valves Work
The heart is located under the rib cage -- 2/3 of it is to the left of your breastbone (sternum) -- and between your lungs and above the diaphragm.The heart is about the size of a closed fist, weighs about 10.5 ounces, and is somewhat cone-shaped. It is covered by a sack termed the pericardium or pericardialsack.The normal heart anatomy consists of a four-chambered, hollow organ.It is divided into the left and right sides by a muscular wall called the septum.Normal heart anatomy and physiology need the atria and ventricles to work sequentially, contracting and relaxing to pump blood out of the heart and then to let the chambers refill. When blood leaves each chamber of the heart, it passes through a valve that is designed to prevent the backflow of blood. There are four heart valves within the heart: 1...
The heart valves work the same way as one-way valves in the plumbing of your home. They prevent blood from flowing in the wrong direction.Each valve has a set of flaps, called leaflets or cusps.The mitral valve has two leaflets; the others have three.The leaflets are attached to and supported by a ring of tough, fibrous tissue called the annulus.Nov 10, 2024 · Left Border: Formed by the left ventricle and part of the left atrium. Inferior Border: Formed by the right ventricle and part of the left ventricle. Superior Border: Formed by the right and left atria and the great vessels. Chambers of the Heart. Right Atrium: The right atrium is a thin-walled chamber located in the upper right side of the heart.
Jul 29, 2020 · 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 not ...
Mar 10, 2015 · The heart has three layers. They are the: Epicardium: This thin membrane is the outer-most layer of the heart. Myocardium: This thick layer is the muscle that contracts to pump and propel blood ...
The base of the heart is located along the body's midline with the apex pointing toward the left side. Because the heart points to the left, about 2/3 of the heart's mass is found on the left side of the body and the other 1/3 is on the right. Anatomy of the Heart Pericardium. The heart sits within a fluid-filled cavity called the pericardial ...
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Feb 24, 2021 · Antibiotic Classes and Drug Names: The Pharmacology Trick. Function and anatomy of the heart made easy using labeled diagrams of cardiac structures and blood flow through the atria, ventricles, valves, aorta, pulmonary arteries veins, superior inferior vena cava, and chambers. Includes an exercise, review worksheet, quiz, and model drawing of ...
