Circulatory System

What is the role of the left atrium in the heart's function?

• To store blood before it is pumped out
• To regulate heart rhythm
• To receive oxygenated blood from the lungs
• To pump deoxygenated blood to the lungs

Which blood vessel type is responsible for nutrient and gas exchange?

• Veins
• Arteries
• Venules
• Capillaries

How does the circulatory system resemble a busy city?

• It has skyscrapers
• It has roads and highways for transport
• It has a central park
• It has a public transport system

Which type of blood vessel carries oxygenated blood away from the heart?

• Veins
• Capillaries
• Arteries
• Venules

Which of the following components is NOT part of the circulatory system?

• Heart
• Blood vessels
• Lungs
• Blood

Which of the following statements about the circulatory system is true?

• It is not essential for life
• It only transports oxygen
• It consists of the heart, blood vessels, and blood
• It does not play a role in nutrient transport

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

• To filter blood
• To pump blood throughout the body
• To store nutrients
• To produce hormones

Which chamber of the heart is responsible for receiving deoxygenated blood from the body?

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle

What is the primary role of the right ventricle?

• To pump blood to the lungs
• To pump blood to the body
• To store blood
• To receive oxygen-rich blood

Which chamber of the heart pumps oxygenated blood to the rest of the body?

• Right atrium
• Left ventricle
• Right ventricle
• Left atrium