How many times does a human heart beat in a lifetime?

1. How many times does a human heart beat in a lifetime?

• A

  1 billion times

• B

  2 billion times

• C

  2.5 billion times

• D

  2.85 billion times

  According to Dr. Doan Du Manh, a member of the Vietnam Society of Vascular Diseases, your heart beats approximately 100,000 times a day and about 35 million times a year. The average life expectancy in the United States (as of 2022) is 77.5 years, according to the 2022 report by the Centers for Disease Control and Prevention. This means that throughout a lifetime, a person's heart beats approximately 2.85 billion times.

2. Is the heart located in the left or right side of the chest?

• A

  Between the ribs

• B

  Left

  The heart is a blood-filled muscle located in the left side of the chest. Because the heart is positioned slightly to the left of the rib cage, the left lung is slightly smaller to accommodate it. The heart and other internal organs are protected by the rib cage.

• C

  Right

3. How many chambers does the human heart have?

• A

  1

• B

  2

• C

  3

• D

  4

  Anatomical analysis of the heart reveals that the human heart has four chambers, also known as the four heart chambers. The two atria are located above, and the two ventricles are located below, communicating with each other through the atrioventricular canal. The right atrium communicates with the right ventricle via the tricuspid valve, allowing blood to flow only from the atrium to the ventricle. The left atrium communicates with the left ventricle via the mitral valve.

Nhu Loan

Source: https://vtcnews.vn/trai-tim-con-nguoi-dap-bao-nhieu-lan-trong-doi-ar907945.html