Mother of Taiwan activist arrives in China for trial

The video provides a brief introduction to the heart, highlighting its central role in the body.

What is the primary focus of the introduction section?

• The structure of the heart

• The history of heart studies

• The significance of the heart

• The diseases affecting the heart

Where is the heart located in the body?

• In the chest

• In the leg

• In the brain

• In the abdomen

What is one of the main functions of the heart?

• To store energy

• To pump blood

• To digest food

• To filter toxins

Which organ is primarily responsible for circulating blood?

• Lungs

• Liver

• Kidneys

• Heart

What is the heart's role in the circulatory system?

• To pump oxygenated blood

• To regulate temperature

• To break down nutrients

• To produce hormones