This organ pumps blood throughout our whole body without ever stopping and is responsible for keeping us alive.
PAULA XIMENA BURBANO, Cardiologist
The heart is in charge of sending blood to the lungs to get oxygen and then sends it throughout our whole body.
This is how it works
4 chambers: Two atriums are in charge of receiving the blood and two ventricles pump it out. It has four valves that serve as doorways that open and close, allowing for blood to pass from one cavity to another and, lastly, onto the large arties through which the blood is distributed.
- Right atrium
- Left atrium
- Right ventricle
- Left ventricle
Heartbeats, When This Muscle Contracts
Atrial contractions: The atriums contract, pushing blood towards the ventricles.
Ventricular contractions: The ventricles contract, pushing blood towards the circulatory system.
Diastole: This is when all parts of the heart relax in order to allow for the new blood to enter.
The flow of blood throughout the human body occurs during systole, while the flow of blood in the heart occurs during diastole.
Its size is proportional to the size of one’s fist and depends on the build of each person. Generally, the heart is in the middle of the chest and is a little to the left. It is located behind the sternum and is supported underneath by the diaphragm. This is why heartbeats are heard more strongly on the left side.
Heart disease continues to be one of the main causes of death throughout the whole world. The risk of cardiovascular disease in women increase significantly after menopause.
A pioneer procedure considered to be a success, the first heart transplant #took place in South Africa in 1967 by #Doctor Christiaan Barnard.
The heart needs nutrients and oxygen in order for it to function. It obtains these from the blood that passes through the coronary arteries whcih exit the aorta.
Of all the body’s muscles, this muscle is always active.
Since it generates its own electric impulses, it can continue to beat for a few minutes even if it is not inside the body.
Diabetes, cholesterol and high blood pressure, obesity, smoking and sedentary lifestyles are risk factors for heart disease.
Some practices that keep the heart healthy are stress management, exercise, happiness, and healthy eating.
On average the heart beats
60 to 100
times a minute
times a day
times a year
times throughout the term of one’s life