I WONDER - How Quickly Does Blood Flow?

The video explains how blood travels from the heart to the lungs to receive oxygen, then circulates throughout the body. It highlights the heart's role in pumping blood and its continuous beating, which occurs 60 to 100 times per minute.

What is the primary purpose of blood traveling from the heart to the lungs?

• To regulate body temperature

• To deliver nutrients to the lungs

• To remove carbon dioxide

• To receive oxygen

How long does it take for blood to circulate throughout the entire body?

• 20 seconds

• 40 seconds

• 10 seconds

• 30 seconds

What is the main function of the heart in the circulatory system?

• To produce blood cells

• To filter blood

• To pump blood

• To store blood

How often does the heart beat per minute on average?

• 110 to 130 times

• 30 to 50 times

• 60 to 100 times

• 140 to 160 times

What does the heart do continuously to maintain circulation?

• It pauses occasionally

• It beats continuously

• It beats only during the day

• It stops and starts