Study about the anatomy of our heart with these diagrams of the heart as the reference. You may not realize that there are many parts of our heart that keeps it beating, thus making us alive. The heart is the organ that helps supply blood and oxygen to all parts of the body and is located within the chest cavity and surrounded by a fluid filled sac called the pericardium. Take a look at the following diagram below to see the detailed illustration!
The heart is located between our lungs in the middle of chest, behind and slightly to the left of breastbone. As you can see in the diagram of the heart above, our heart has 4 chambers. The upper chambers are called the left and right atria, and the lower chambers are called the left and right ventricles. You can also notice the arteries in the heart. The pressure created in the arteries by the contraction of the left ventricle is the systolic blood pressure. The job of the heart is to pump blood to both the heart and the body, as illustrated with the red and blue color.
Normally blue blood (blood without oxygen) returns from the upper portion of the body by way of the superior vena cava and from the lower portion of the body by way of the inferior vena cava. After collecting in the right atrium, it passes to the right ventricle. The right ventricle then pumps the blue blood out to the lungs through the pulmonary artery. In the lungs, the blood collects oxygen and turns a red color. Red blood (blood with oxygen) returns back from the lungs by way of the pulmonary veins. After collecting in the left atrium it passes into the left ventricle and from there is pumped to the body by way of the aorta.
Studying the parts of heart is important for us to maintain our health. All of the diagrams are printable and you can find more of our educational diagrams in the other posts or categories!