Understanding the Circulatory System

The video tutorial explains the circulatory system, focusing on the heart and blood vessels. It describes the heart's role as a pump, the types of blood vessels, and how blood circulates. The tutorial also covers how to measure pulse and the function of blood in transporting nutrients and waste.

What is the primary function of the circulatory system?

• To digest food

• To produce energy

• To store nutrients

• To circulate blood

How does the heart function in the body?

• It stores blood

• It digests food

• It filters blood

• It pumps blood

Which type of blood vessel is known for carrying oxygen-rich blood?

• Capillaries

• Nerves

• Arteries

• Veins

What is the role of capillaries in the circulatory system?

• To store blood

• To connect arteries and veins

• To pump blood

• To filter blood

How can you measure your pulse?

• By counting breaths

• By listening to your stomach

• By placing fingers on the wrist

• By using a thermometer

What is the main function of blood in the body?

• To digest food

• To carry oxygen and nutrients

• To produce hormones

• To store energy

Which instrument is used by doctors to listen to the heartbeat?

• Otoscope

• Sphygmomanometer

• Stethoscope

• Thermometer

Where does the heart send impure blood for purification?

• To the liver

• To the stomach

• To the kidneys

• To the lungs

What happens to the circulatory system when you are asleep?

• It slows down significantly

• It stops working

• It works intermittently

• It continues to function