Fungsi.co.id – Heart Functions in Humans The main function of the heart is to pump blood throughout the body. As a means of transportation in the body, blood is responsible for transporting nutrients and oxygen needed by the body’s organs, as well as for transporting waste materials. The heart and blood vessels make up the cardiovascular system to ensure human survival. The heart can be said as an organ that is the center of life for the entire human body.
A normal and healthy heart is supported by strong muscle tissue and works well in pumping blood. The heart that pumps blood continuously can flow more than 14,000 liters of blood per day. This organ, only the size of a fist, is located in the center of the chest, behind the sternum. The heart is an organ protected by twelve pairs of ribs.
The heart is a cavity that is moved by a muscle called cardiac muscle. The heart muscle pumps blood through the blood vessels using rhythmic contractions that repeat continuously without stopping. Let’s take a quick look at the function of the heart for the human body.
The Function of the Heart in the Human Body
Human Heart Functions Heart Valve Parts
The function of the valves of the human heart is to keep blood flowing as it should. The heart valve consists of four parts, what are they?
- Tricuspid valve which regulates blood flow between the right atrium and right ventricle.
- Pulmonary valve responsible for regulating blood flow from the right ventricle to the pulmonary artery, which transports blood to the lungs to pick up oxygen.
- mitral valve used to drain oxygen-rich blood from the lungs, which flows from the left atrium to the left ventricle.
- aortic valve paving the way for oxygenated blood from the left ventricle to the aorta (the largest artery in the body).
The Function of the Human Heart Blood Vessel Parts
Blood vessels are where blood flows. This is an important part in enabling the human heart to function optimally to pump blood throughout the body. The following are the parts of blood vessels and their functions:
- Arteries is responsible for carrying oxygen-rich blood from the heart to other parts of the body. Arteries have walls that are elastic enough to keep blood pressure constant.
- Vena, These blood vessels carry deoxygenated blood from throughout the body back to the heart. Compared to arteries, veins have thinner vessel walls.
- Capillary, These blood vessels, serves to connect the smallest arteries with the smallest veins. The walls are so thin that they allow blood vessels to exchange compounds with surrounding tissues such as carbon dioxide, water, oxygen, waste, and nutrients.
The function of the human heart in the right atrium
There is dirty blood in the right atrium. Dirty blood is oxygen-poor blood that enters the right atrium through the superior and inferior vena cava. The function of the human heart in the right atrium is to pump blood from this atrium to the right ventricle.
Understand that according to the anatomy of the right atrium, the function of the heart is to take dirty blood from the body carried by blood vessels. In the fetal heart, there is an opening in the right atrium to allow blood to flow directly into the left atrium.
This heart function is important for fetal circulation because the fetal lungs cannot yet work, so the fetus can take clean oxygenated blood directly from the mother. After birth, the baby’s lungs expand and begin to function. The hole is closed and forms a boundary between the right and left atrium.
The function of the human heart in the right ventricle
The function of the human heart in the right ventricle is responsible for pumping dirty blood to the lungs so that carbon dioxide can be exchanged for oxygen through the process of breathing. The right ventricle is below the right atrium and adjacent to the left ventricle.
Dirty blood flowing through the right atrium flows through the tricuspid valve to reach the right ventricle. This blood is then pumped through the pulmonary valve to the lungs and travels through the pulmonary arteries. If the heart does not work properly in this area, preventing it from pumping efficiently, a person can develop right heart failure.
The function of the human heart on the left atrium
The function of the heart in humans, the left atrium, is responsible for keeping blood clear from the lungs. Clean blood is blood that contains oxygen. Clean blood enters the left atrium through the pulmonary veins or veins.
The function of the human heart in the left atrium is to make blood and then pump it through the mitral valve into the left ventricle. The foyer has thinner walls and is not muscular because it is only used to draw blood.
Functions of the Human Heart Left ventricle
The left ventricle is located below the left atrium and is separated by the mitral valve. The left ventricle is the thickest part of the heart. The function of the left ventricle of the human heart is to pump clean blood throughout the body.
Conditions of high blood pressure can cause the muscles of the left ventricle to enlarge and tighten due to the increased workload on the left ventricle that pumps blood. If this happens continuously, the function of the heart in this section to pump blood throughout the body can be disrupted.
How the Human Heart Works in Performing Its Function
· Setting the Beat Time To Control Pump Time
This electrical system keeps the heart beat in a regular rhythm and adjusts its speed. When the electrical system is working properly, the heart rate and rhythm will remain normal.
If a problem occurs, it can cause an arrhythmia, in which the chambers of the heart beat randomly. A heartbeat that is too fast is called tachycardia, and a heart rate that is too slow is called bradycardia.
· Ensuring the Health of the Muscles That Form It Stay Healthy
Please note that the four chambers of the heart in the human body are made up of a special type of muscle, the myocardium. This heart muscle regulates contractions to pump and circulate blood around the body.
At some point, the muscles relax to take in blood and contract to circulate it throughout the body. To regulate its function, muscles need oxygen and proper nutrition. The heart automatically pumps oxygen-rich blood through the coronary arteries into its own muscles.
· Keeps Blood Flowing Efficiently
In this case, the heart has four valves to control the flow of blood into and out of the chambers. There are valves on each side of the heart between the atria and ventricles. There are also valves that control the flow of blood out of each ventricle.
When the valve opens, blood flows out. When the chambers relax, the valves close, preventing blood from leaking back into the chambers, and allowing the chambers to refill with blood. If there is a malfunction or problem with the valve, the blood flow is automatically interrupted.
Heart Diseases to Watch Out for
Since the heart is one of the most important organs, understanding how the heart works and how to keep it healthy is important. Because heart disease is the leading cause of death worldwide, in both men and women. There are several types of heart disease that you should be aware of because of the level of danger, including:
· Coronary heart disease
Coronary heart disease is one of the most common types of heart disease. This disease, also known as coronary artery disease, occurs when plaque builds up on the walls of the coronary arteries and restricts blood flow to the heart muscle, eventually causing a heart attack.
Arrhythmias are also one of the most common heart problems. Arrhythmias are related to the heart’s electrical system. People with an irregular heartbeat may find their heartbeat too fast, too slow, or irregular. The way the heart pumps blood is disrupted when arrhythmia problems occur.
Heart valve disease
The heart has four valves that work together to ensure that blood is pumped in the right direction. Sometimes valves have problems due to various things, including valves that don’t close or open fully. This disease known as leaky heart is linked to this valve problem.
· Heart failure
Heart failure does not mean the heart stops working completely because it failed. This disease refers to a condition in which the heart doesn’t pump well enough so the body can’t get the blood and oxygen it needs. Heart failure is often a complication of other heart conditions, including coronary artery disease.
Tips for Maintaining Heart Health
How to maintain a healthy heart is actually simple. The following steps can help you reduce your risk of heart disease:
- Eat lots of healthy foods like fruits, vegetables, whole grains, and fish.
- Do active exercise for at least 30 minutes to 1 hour a day. A leisurely walk or going up and down stairs can be a simple alternative to exercise.
- Proportionate weight control
- stop smoking
- Take medication for high blood pressure, diabetes, or high cholesterol as prescribed by your doctor
To better understand how the heart works and its risk factors, as well as prevent heart disease, you can consult a doctor at a heart clinic. Examination can be done directly to assess the condition of your heart.
Here’s a little discussion about Heart Functions in Humans Hopefully this discussion can add insight and knowledge for all of us, and we thank you for listening to our review. If you find our review useful, please share it :).
Also read other articles about: