Do You Know What is the human heart Structure And Function……If No Then Lets Go!
What is the human heart? The heart is actually a muscular organ that pumps blood to all parts of the body by its regular contractions and relaxations. The relaxation fills the human heart with blood, and the contraction causes the heart to push out the blood away from the heart. The size of our hearts is approximately the size of a closed fist.
Location In Human Body
The heart is situated between the lungs and behind the breastbone. The human heart is situated in the chest cavity or thorax. It is not situated to the left side of our body, but it is just slightly tilted to the left side. However, as said above, it is situated in the middle of the chest between the left and right lung.
Chambers Of The Heart
The human heart consists of four chambers. The upper two chambers are thin-walled chambers and are known as left and right atria. While the lower two chambers are thick-walled chambers and are known as the left and right ventricle.
Strongest Chamber Of The Heart
The left ventricle is the strongest chamber of the heart because it is much thicker and denser as compared to the right ventricle. Moreover, it pumps blood to all parts of the body.
Function Of Right Atrium And Left Ventricle
The right atrium receives deoxygenated blood from the body through the superior and inferior vena cava. When the right atrium contracts, it passes the deoxygenated blood to the right ventricle through an opening between the right atrium and the right ventricle which is known as a tricuspid valve. Tricuspid valve prevents the backflow of blood from the right ventricle to the right atrium. When the right ventricle contracts, it passes the deoxygenated blood to the lung for filtration through the pulmonary trunk. There is a pulmonary semilunar valve on the base of the pulmonary trunk which prevents the backflow of blood from lungs to the right ventricle.
Function Of Left Atrium And Left Ventricle
The left atrium receives oxygenated blood from the lungs through the pulmonary vein. When the left atrium contracts, it passes the oxygenated blood to the left ventricle through an opening between the left atrium and the left ventricle which is known as a bicuspid valve. Bicuspid valve prevents the backflow of oxygenated blood from the left ventricle and left atrium. Similarly, when the left ventricle contracts, it passes the blood to the aorta through aortic semilunar valve. Aortic semilunar valve prevents the backflow of oxygenated blood from the aorta to the left ventricle.
Cardiovascular Diseases
Cardiovascular diseases are the diseases that affect our hearts. There are many types of cardiovascular diseases, and due to these diseases many people are at death’s door. However, if you want to live a healthy and happy life, then you must know about the following diseases.
Abnormal Heart Rhythms
Our heart beats about 70 to 100 times per minute or 100,000 times per day, and this is known as the normal heart beat of a person. But sometimes this heart beat is either more or less than the normal heart beat. This is known as abnormal heart beat. Heart beat problems are also known as arrhythmias. Sometimes irregular heart beats resolve on their own, but if they don’t, then it can be dangerous.
Congenital Heart Disease
The term ‘congenital’ means a disease or an abnormality present from birth. Congenital heart disease is a disease in which a baby’s heart is not fully developed. It also affects the way a normal heart works. Its symptoms begin to appear in childhood, but in some people it may occur in their adulthood. It can also be a cause of developing some other disease such as issues with growth, heart failure and some other heart issues.
Heart Attack
A heart attack occurs when the flow of blood to the heart is blocked. It is also known as myocardial infarction. Due to the blockage of blood, the heart muscles do not get sufficient amounts of blood and heart muscle dies. Most commonly, people feel chest pain during a heart attack. However, not all people observe the same symptoms. They may have shortness of breath, pain in the stomach, pain in the arm, sweating and dizziness etc.
Pericardial Disease
The heart is surrounded by a sac known as pericardium. It acts as a lubricant and reduces the friction between the heart and pericardium when the heart contracts. It is a disease during which an excess amount of fluid is formed between the pericardium and the heart.
Stroke
A stroke occurs when the blood supply to the brain is blocked due to which blood and oxygen cannot reach the brain tissues. It is also known as a brain attack. It damages the brain, and it causes disability of the brain. Symptoms of stroke include losing consciousness, vomiting, confusion, difficulty in speaking and feeling weak etc.
Conclusion
Here is the information about the heart, its chambers and the diseases related to the heart. I hope you will enjoy reading it.
Thank you for reading.
