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Jan 11, 2021 · Furthermore, the position of the cardiac septum at about 45º to the median brings the ‘right heart’ structures anterior to the ‘left heart’ structures (Figure 3A). The ventricles are situated inferior and leftward relative to their corresponding atria.
- Atherosclerosis
The intima is located closest to the arterial lumen and is...
- Disclaimer
The Textbook of Cardiology contains articles on many medical...
- Women's Heart Health
Facts & Figures Epidemiology. Cardiovascular disease (CVD)...
- Pericardial Disease
Heart Failure; Cardiac Arrhythmias; Coronary Disease;...
- Pulmonary Embolism
Pulmonary embolism (PE) is a blockage of the main artery of...
- Coronary Disease
Heart Failure; Cardiac Arrhythmias; Coronary Disease;...
- Cardiac Arrhythmias
A high heart rate can result in the accumulation of...
- Congenital
The hypoplastic left heart syndrome (HLHS) is the most...
- Atherosclerosis
- Pericardium
- Structure of The Heart Wall
- Chambers of The Heart
- Valves of The Heart
- Conduction System of The Heart
The heart sits within a fluid-filled cavity called the pericardial cavity. The walls and lining of the pericardial cavity are a special membrane known as the pericardium. Pericardium is a type of serous membrane that produces serous fluid to lubricate the heart and prevent friction between the ever beating heart and its surrounding organs. Besides ...
The heart wall is made of 3 layers: epicardium, myocardium and endocardium. 1. Epicardium. The epicardium is the outermost layer of the heart wall and is just another name for the visceral layer of the pericardium. Thus, the epicardium is a thin layer of serous membrane that helps to lubricate and protect the outside of the heart. Below the epicard...
The heart contains 4 chambers: the right atrium, left atrium, right ventricle, and left ventricle. The atria are smaller than the ventricles and have thinner, less muscular walls than the ventricles. The atria act as receiving chambers for blood, so they are connected to the veins that carry blood to the heart. The ventricles are the larger, strong...
The heart functions by pumping blood both to the lungs and to the systems of the body. To prevent blood from flowing backwards or "regurgitating" back into the heart, a system of one-way valves are present in the heart. The heart valves can be broken down into two types: atrioventricular and semilunar valves. 1. Atrioventricular valves. The atriove...
The heart is able to both set its own rhythm and to conduct the signals necessary to maintain and coordinate this rhythm throughout its structures. About 1% of the cardiac muscle cells in the heart are responsible for forming the conduction system that sets the pace for the rest of the cardiac muscle cells. The conduction system starts with the pac...
Aug 26, 2013 · Heart Anatomy. Size, Location, and orientation. The heart is around the size of a fist and weighs between 250-350 grams (less than a pound). Enclosed within the mediastinum, the medial cavity of the thorax, the heart extends obliquely from the second rib to the fifth intercostal space.
Jun 11, 2024 · The heart is the pump that moves blood around your body. It has four main parts: two upper chambers called atria and two lower chambers called ventricles. These parts work together to get oxygen-rich blood to your body and oxygen-poor blood back to your heart.
Mar 10, 2015 · The heart is divided into four chambers: two atria and two ventricles. Blood is transported through the body via a complex network of veins and arteries.
The atria (plural of atrium) are where the blood collects when it enters the heart. The ventricles pump the blood out of the heart to the lungs or around the body. The septum separates the...
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Which side of the heart consists of a atria and a ventricle?
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What is the function of endocardium?
The left atrium and right atrium are the two upper chambers of the heart. The left atrium receives oxygenated blood from the lungs. The right atrium receives deoxygenated blood returning from other parts of the body. Valves connect the atria to the ventricles, the lower chambers.
