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Heart

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About Human Heart

The heart is our living and loving organ. It’s that part of our inner being that enables us to love God and what He loves us. Since love is the basis for all our experiences, we need to start anything in life with the Heart!
  1. Human heart is an incredible machine.
  2. Human heart is a muscular organ.
  3. The average heart beats 70 times per minute
  4. That is about 100000 times each day.
  5. That is about 36 million times a year.
  6. That is about 3 billion times in a life time.
  7. Your heart is about a size of fist and is located close to the middle of the chest.
  8. Your heart weights between 250-400 grams (9-12 oz) less than approximately 4 medium sized bananas.

Heart Statistics

  1. Heart disease has emerged as the number one killer among Indians.
  2. With over 3 million deaths due to cardiovascular diseases every year, India is set to be the “heart disease capital of the world.”
  3. The cardiovascular disease related deaths projected to reach 2584000 by 2020 from 1175000 in 1990 with a majority of them in the age group of 30-44 year.
  4. By 2020, cardiovascular disease will be the cause of over 40 percent deaths in India as compared to 24 percent in 1990. Globally it causes 17.3 million deaths annually.
  5. The World Health Organisation (WHO) has predicted that by 2030, India alone will account for 60 percent of the world’s cardiac patients, nearby four times its share of world’s population.
  6. Stress, life style choices such as smoking, physical inactivity, expressive alcohol use and poor diet and habit of junk food. These lead to risk of heart diseases.
  7. Approximately 1 in every 100 children born with a heart defect by birth. Congenital Heart Disease).
  1. Human heart is an incredible machine.
  2. Human heart is a muscular organ.
  3. The average heart beats 70 times per minute
  4. That is about 100000 times each day.
  5. That is about 36 million times a year.

  6. That is about 3 billion times in a life time.

  7. Your heart is about a size of fist and is located close to the middle of the chest.
  8. Your heart weights between 250-400 grams (9-12 oz) less than approximately 4 medium sized bananas.
  • Your heart is a muscle about the size of a fist. It is in the middle of your chest tilted slightly to the left.
  • Each day, your heart beats about 100,000 times. It pumps about 23,000 litres (5,000 gallons) of blood around your body.
  • This blood delivers oxygen and nutrients to all parts of your body, and carries away unwanted carbon dioxide and waste products.
  • Your heart is a vital part of your cardiovascular system.
  • Inside the heart there are four chambers – two on the left side and two on the right.

  • The two small upper chambers are called the atria.

  • The two larger lower chambers are called the ventricles.

  • The left and right sides of the heart are divided by a muscular wall called the septum.
  • For your heart to keep pumping regularly, it needs an electrical supply. This is provided by a special group of heart cells called the sinus node – also known as your heart’s natural pacemaker.
  • As your heart beats, it pumps blood to every part of your body. This is called your circulatory system.
  • Our Heart And Circulation
  • Every part of our body needs a fresh supply of blood in order to work normally. It’s our heart’s job to make sure that this is pumped out regularly.
  • The cardiovascular system
  • The movement of blood around the body, pumped by the heart, is called circulation. Your heart, blood and blood vessels together make up our cardiovascular system (or heart and circulatory system).

  • Your body contains about five litres (eight pints) of blood, which our heart is continuously circulating.

  • The two sides of your heart are separate, but they work together.
  • The right side of the heart receives dark, de-oxygenated blood which has circulated around your body.
  • It pumps this to our lungs, where it picks up a fresh supply of oxygen and becomes bright red again.
  • The blood then returns to the left side of the heart, ready to be pumped back out to the rest of our body.
  • There are four valves in our heart. They act like gates that open and close, making sure that your blood travels in one direction through our heart – a bit like a one-way traffic system. They are called the tricuspid valve and the pulmonary valve on the right side of the heart, and the mitral valve and the aortic valve on the left.

  • Like every other living tissue, the heart itself needs a continuous supply of fresh blood. This comes from the coronary arteries which branch off from the main artery (the aorta) as it leaves the heart. The coronary arteries spread across the outside of the myocardium, supplying it with blood.

  • How blood travels around our body

    As your heart muscle contracts, it pushes blood through your heart. With each contraction, or heartbeat:

  • Our heart pumps blood from its left side, through the aorta (the main artery leaving the heart) and into the arteries.
  • The blood travels through our arteries, which divide off into smaller and smaller branches of blood vessels called capillaries. Travelling through this network of capillaries, blood reaches every part of our body.

  • The de-oxygenated blood then travels back to the heart through our veins. Branches of veins join to form larger veins, which lead back to the right side of our heart.

    From here, our heart will pump the de-oxygenated blood to your lungs with its next heartbeat.

  • As the heart relaxes in between each heartbeat or contraction, blood from your veins fills the right side of our heart. At the same time, blood that’s freshly full of oxygen from our lungs fills the left side ready for the entire process to start again.

  1. Heart disease has emerged as the number one killer among Indians.
  2. With over 3 million deaths due to cardiovascular diseases every year, India is set to be the “heart disease capital of the world.”
  3. The cardiovascular disease related deaths projected to reach 2584000 by 2020 from 1175000 in 1990 with a majority of them in the age group of 30-44 year.
  4. By 2020, cardiovascular disease will be the cause of over 40 percent deaths in India as compared to 24 percent in 1990. Globally it causes 17.3 million deaths annually.
  5. The World Health Organisation (WHO) has predicted that by 2030, India alone will account for 60 percent of the world’s cardiac patients, nearby four times its share of world’s population.
  6. Stress, life style choices such as smoking, physical inactivity, expressive alcohol use and poor diet and habit of junk food. These lead to risk of heart diseases.
  7. Approximately 1 in every 100 children born with a heart defect by birth. Congenital Heart Disease).