How blood flows through the Heart and lungs


The heart is a complex organ that uses four chambers. four valves and many blood vessels to provide blood to the body. By itself, blood flow is no less complex, involving a cyclical series of steps that move blood through the heart to the lungs to oxygenate it, deliver it throughout the body, and then return the blood to the heart to resume the process.

This is the key function of cardio-vascular system: consumption, transport and use of oxygen during physical activity (even at rest). Disorders of blood flow through the heart and lungs can have serious consequences.

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Blood flow Step by step

The heart consists of two upper chambers, the left and right atria, and two large lower chambers, the left and right ventricles. A series of valves controls the flow of blood to and from these chambers.

Controlled electrical impulses cardiac conduction system. it causes the heart muscle to contract and relax, creating the frequency and rhythm of your heartbeat. Here are the stages of blood passing through the heart and lungs:

  1. Blood enters the right atrium first.
  2. Blood then flows through the tricuspid valve into the right ventricle.
  3. When the heart beats, the ventricle pushes blood through the pneumonic valve into the pulmonary artery.
  4. Pulmonary artery it delivers blood to the lungs, where it” takes ” oxygen and then leaves the lungs to return to the heart through pulmonary vein.
  5. Blood enters the left atrium, then descends through mitral valve left ventricle.
  6. The left ventricle then pumps blood through the aortic valve to the aorta, an artery that feeds the rest of the body through the blood vessel system.
  7. Blood returns to the heart from the body through two large blood vessels called superior vena cava and inferior vena cava. This blood carries little oxygen, as it returns from the body where the oxygen was used.
  8. The hollow veins pump blood into the right atrium and the cycle of oxygen saturation and transport begins again.

Arteries usually carry oxygen-rich blood. The pulmonary artery is unique: it is the only artery in the human body that carries oxygen-poor blood.

Importance of valves

Without the valves, the ventricles of the heart could not develop any force or pressure. It would be like pumping a flat tire with a big hole in it: no matter how much effort you put into pumping, the tire will never inflate.

In the case of the heart, blood entered the chamber and simply splashed through it, exiting the valve at the bottom or upwards in the wrong direction each time the ventricle tried to pump blood.

The four heart valves open and close at the right time to allow blood to flow through the heart in the right direction. Part of the sound of your heartbeat is the closing of the valves.

Positive and negative effects of blood flow

A healthy heart usually beats 60 to 70 times a minute when you’re at rest. This rate may be higher or lower depending on their health and fitness; for example, athletes generally have a lower resting heart rate.

Your heart rate increases with exercise, as your muscles consume oxygen while working. The heart works harder to get oxygenated blood where it’s needed.

An altered or irregular heartbeat can affect blood flow to the heart. This can happen in several ways:

  • The electrical impulses that regulate your heartbeat are exposed, causing arrhythmia or irregular heartbeat. Atrial fibrillation – a common form of this disease.
  • Conduction disorders, or heart blockages. they affect the heart’s conductive system, which regulates how electrical impulses pass through the heart. Unit type-atrioventricular (AV) unit or beam branch block gisa-depends on where it originates in the driver system.
  • Damaged or diseased valves it may become ineffective or cause blood to leak in the wrong direction.
  • A blockage of a blood vessel that may occur gradually or suddenly can disrupt blood flow, for example, during heart attack.

If you experience an irregular heartbeat or heart symptoms, such as chest pain and shortness of breath, seek medical attention right away.

A Few Words From Get Meds Info

Healthy blood flow is crucial for overall health. Physical activity is one of the best ways to achieve and maintain optimal functioning of your heart and lungs.

If you have health problems, talk to your health care provider about the best way to keep your heart rate and rhythm, and therefore your blood flow, healthy. This is one of the most important things you can do during a long life.

Frequently asked questions

  • Blood moves in two directions at the same time. Oxygen-deprived blood enters the right side of the heart and is pumped to lung to get oxygen. This oxygen-rich blood then enters the heart again on the left side and is pumped into the body’s cells.

  • Exercise will make your heart beat faster and increase your heart rate. Many factors can also affect resting heart rate. These include:

    • Drugstore
    • How healthy
    • Air temperature and humidity
    • Body position (standing, sitting, lying down)
    • Emotions (anxiety, stress)
    • Body weight

  • Yes. Physique exercise strengthens the heart muscle to work more efficiently and maintain blood flow. Physique exercise also helps you maintain a healthy weight, reduces the risk of high cholesterol and blood sugar levels, and improves blood vessel function, which also promotes effective blood circulation.

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