The heart is a muscular organ in humans and other animals, which pumps blood through the blood vessels of the circulatory system. Blood provides the body with oxygen and nutrients, and also assists in the removal of metabolic wastes.
https://en.wikipedia.org/wiki/Left_heart
Right heart catheterization. Catheterization of the right side of the heart is performed through the venous route. It helps in the assessment of the following parameters: 1  Measurement of cardiac output, left ventricular filling pressure and pulmonary artery wedge pressure. 2  Measurement of right heart oxygen saturations.
http://heartplace.com/services/interventional-cardiology/diagnostic-right-and-left-heart-cardiac-catheterization/
Commonly the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart. Fish in contrast have two chambers, an atrium and a ventricle, while reptiles have three chambers.
https://en.wikipedia.org/wiki/Left_heart
Left-sided Heart Failure. The left side of the heart brings oxygen-rich blood from the lungs through the left atrium to the left ventricle, then out into your body. When the left side of your heart is damaged or can’t pump as well, it has to work harder to send blood through your body. This causes fluid to build up in your body, especially the lungs. That’s why shortness of breath is one of the most common symptoms of heart failure.
http://share.upmc.com/2015/06/difference-between-left-side-right-side-heart-failure/
Your doctor can perform diagnostic tests and some procedures on your heart with the help of the catheter. Diagnostic Cardiac catheterization is a procedure that involves insertion of a thin flexible tube (catheter) into the right or left side of the heart, usually through the groin or arm.
http://heartplace.com/services/interventional-cardiology/diagnostic-right-and-left-heart-cardiac-catheterization/
Although both sides of the heart will pump the same amount of blood, the muscular layer is much thicker in the left ventricle compared to the right, due to the greater force needed here. Like the right ventricle, the left also has trabeculae carneae, but there is no moderator band.
https://en.wikipedia.org/wiki/Left_heart
The most common cause of heart failure is coronary artery disease (sometimes called coronary heart disease), which is a disease that causes narrowing of the arteries that supply blood and oxygen to the heart.
http://www.healthline.com/health/heart-failure
Cardiac output (CO) is a measurement of the amount of blood pumped by each ventricle (stroke volume) in one minute. This is calculated by multiplying the stroke volume (SV) by the beats per minute of the heart rate (HR). So that: CO = SV x HR.
https://en.wikipedia.org/wiki/Left_heart
Right-sided Heart Failure. The right side of the heart usually becomes weaker in response to failure on the left side. The right side of the heart brings in the circulated blood from the body and sends it to the lungs for oxygen. When the left side of the heart weakens, the right side of the heart has to work harder to compensate. Again, as the heart muscle loses strength, blood and fluid become backed up in the body.
http://share.upmc.com/2015/06/difference-between-left-side-right-side-heart-failure/
In a healthy heart blood flows one way through the heart due to heart valves, which prevent backflow. The heart is enclosed in a protective sac, the pericardium, which also contains a small amount of fluid.
https://en.wikipedia.org/wiki/Left_heart
what is the difference left and right side of the heart
The difference between left and right side of the heart is that the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart. The right heart consists of the right atrium and right ventricle whereas the left heart consists of the left atrium and left ventricle.