Blood Circulation in the Heart
Alternative medicine for Heart Issues
Everyone is aware that the heart the central organ that pumps blood through our body. But how does the pumping action works? That’s a question not everyone knows the answer to.
There are four chambers inside the heart, each separated from the other. Every chamber has a separate role to play. This designation of the role is what keeps the circulation inside the heart so clean and accurate.
Here is how this magnificent organ helps in supplying oxygenated blood to the entire body.
Location and parts of the heart
The heart is located in the thoracic cavity, a little left to the breastbone or sternum. It sits comfortably between the two lungs. The outer appearance of the heart shows that it is made entirely of muscles. These muscles are the one which contracts and relax to generate a pumping action.
The different parts of the heart are as follows
The human heart has four chambers; the left atrium and ventricle and the right atrium and ventricle. These chambers receive blood from the body and the lungs, respectively. These chambers are connected to the major blood vessels of the body, which empty their contents in them.
There are four valves in the heart. The purpose of the valve is to ensure there is no backflow of blood when the pressure changes. The tricuspid and mitral (bicuspid) valve is located between the atrium and ventricle.
The aortic and pulmonic valve is located between the ventricles and the major blood vessels that leave the heart for further blood transport.
Just like any other motor or pump, the heart also needs some source of electricity to pump the blood across the body. This electrical impulse is provided by the two nodes, SA and AV nodes. SA node is present on the roof of the right atrium, and AV node is present near the left ventricle.
A constant spike of electricity from the two nodes ensures that the heart keeps pumping in a regular fashion.
The flow of blood in the heart
The flow of blood in the heart is what ensures oxygenation and deoxygenation of the blood. Even though the chambers are separated, they work together to achieve a set pattern of blood flow. To understand it better, let's bifurcate the two sides of the heart.
The right side consists of the right atrium and ventricle. This side of the heart receives the blood from the entire body, transported via the inferior and superior vena cava. This means the right atrium receives deoxygenated or oxygen-deficient blood from the body.
Once the right atrium is full, the pressure dynamics change, and the tricuspid valve opens. As a result, the deoxygenated blood is emptied into the right ventricle. The moment the ventricle gets filled with blood, the valve shut to ensure there isn't any backflow.
After receiving the blood, the ventricular walls contract. This puts pressure on the pulmonic valve and pushes it open. This results in the transfer of the blood from the right ventricle to the pulmonary vein. From here, the blood is transported to the lungs for the purpose of oxygenation.
Once the blood is oxygenated by the lungs, the left side of the heart comes into action. The pulmonary vein brings the oxygen-rich or oxygenated blood from the heart and empties it into the left atrium.
Once the left atrium is full, the pressure changes and forces the mitral valve to open up. The opening of the mitral valve results in the flow of oxygenated blood from the left atrium to the left ventricle. The moment the ventricle is filled with blood, the pressure change shuts the mitral valve and prevents backflow.
The left ventricle is connected to another major blood vessel of the body, the aorta. Aorta is the largest artery of the circulatory system. It is responsible for carrying the oxygenated blood received from the left ventricle and deliver it to the entire body.
The left ventricle and aorta have a valve in between the called the articular valve, which ensures the blood doesn't flow in the wrong direction.
Apart from the circulation heart carries for the entire body, it also needs blood for maintaining its function. The heart receives the required blood supply from the coronary circulation system. There are two main arteries that ensure a proper blood supply to the heart muscle.
Right coronary artery
This artery branches off right at exactly where the aorta leaves the ventricle. It makes the blood supply channel to the right atrium and right ventricle. It then branches into the posterior descending artery. This is the supply source of the bottom portion of the ventricle and the backside of the septum.
Left main coronary artery
This also originates by branching off from the aorta as it leaves the ventricle. This artery branches and give rise to two arteries, the circumflex artery and the left anterior artery. The circumflex artery supplies to the left atrium and the sides and back of the left ventricle.
The entire circulatory system is a complex network of blood vessels that ensures a constant supply of blood in the body. It is a vital network that helps in transporting anything and everything in the body.
It is necessary to keep it healthy to ensure a long and life. Exercise and have a balanced diet to keep your heart healthy. Consider trying a natural supplement on our homepage: