November 7, 2024
Your heart delivers oxygen and nutrients throughout the body, regulates blood pressure, and maintains overall health and wellness. To keep this essential organ functioning correctly, you must take the right steps to protect your heart health. At Cardiovascular Institute of the South, we are dedicated to helping our patients understand how the heart functions and educating them on how to protect their health. Keep reading to gain a deeper understanding with a basic overview of the heart and its responsibilities.
While many know the best practices for heart health, you may not understand the complex functions of the heart. For example, you know that the heart pumps blood throughout the body — but do you know the details of this process? The answer for many is no.
Your heart beats around 100,000 times per day, pumping approximately 2,000 gallons of blood throughout the body. With each contraction of the muscle, the left side of the heart receives blood from the lungs and pushes it out to the remainder of the body. At the same time, the right side receives deoxygenated blood and passes it on to the lungs.
Now that you know the primary responsibility of the heart, let’s look at the functions of its four chambers.
The right atrium is located on the upper right side of the heart. This chamber also has a small structure called the sinoatrial (SA) node. This node, often called the heart’s natural pacemaker, generates electrical impulses that initiate each heartbeat. This helps regulate the heart’s rhythm and pace, ensuring it beats in a coordinated and efficient manner.
The right atrium receives deoxygenated blood via the superior and inferior vena cava, the largest veins in the human body. The right atrium then contracts and pumps this blood into the right ventricle.
The right ventricle on the lower right side of the heart has a thinner muscular wall than the left ventricle. This is because it only needs to pump blood to the lungs, which are much closer to the heart than other organs. The right ventricle is also the location of the tricuspid valve. When the right atrium contracts, this valve prevents blood from flowing backward.
Upon receiving blood from the right atrium, the right ventricle pushes blood through the pulmonary artery to the lungs. Here, the blood receives oxygen and loses carbon dioxide.
The left atrium, located on the upper left side of the heart, is separated from the right atrium by a muscular wall called the interatrial septum. It has thinner walls than the ventricles and does not need to generate as much force to pump blood. The left atrium also has a unique feature called the left atrial appendage. This small pouch-like extension serves as a reservoir and helps regulate blood flow.
Once the left atrium receives oxygen-rich blood via the pulmonary veins, it pumps it into the left ventricle.
The left ventricle is located on the lower left side of the heart. Compared to the other chambers of the heart, it has a much thicker muscular wall. This thickness generates enough force to pump blood to the entire body. The left ventricle also houses the mitral valve, which prevents blood from flowing back into the left atrium.
After the left ventricle has received oxygen-rich blood from the left atrium, it contracts and delivers it to the rest of the body through the aorta.
Now that you understand how the heart functions, it’s essential to understand abnormal heart function. These conditions may affect the heart’s ability to pump blood effectively:
Recognizing the symptoms of abnormal heart function in the human body is crucial for early detection and intervention. Common signs to be vigilant about include:
If you experience symptoms outside of normal heart function, schedule a consultation with a cardiologist as soon as possible. The professionals at Cardiovascular Institute of the South can help diagnose potential issues and find solutions to protect your heart health.
It’s important to note —
If you experience chest pain, shortness of breath, fainting, vomiting, or dizziness, these could be a sign of a heart attack or other serious cardiovascular concerns. Call 911 immediately and seek emergency care.
When the heart is not functioning correctly, it increases your risk of heart disease, stroke, and heart failure. Adopting healthy practices helps you take control of your heart health to live a longer, healthier life. Healthy practices include:
Understanding how the heart functions and setting goals for healthy living can help you protect your heart health.
Are you ready to learn more about heart function and what you can do to keep your heart strong and healthy? Contact your closest Cardiovascular Institute of the South location today. Our cardiologists can help you understand your heart health and find achievable methods to improve its condition. Request an appointment today or give us a call to speak with a helpful member of our team. We look forward to helping you prioritize your health.