Circulatory System and Heart Structure Quiz

What is another name for the circulatory system?

• Respiratory system
• Cardiovascular system
• Digestive system
• Endocrine system

Which of the following is NOT a component of the circulatory system?

• Heart
• Blood vessels
• Blood
• Lungs

What is the primary function of the circulatory system?

• To produce hormones
• To digest food
• To transport substances around the body
• To filter waste from the body

Why is the human circulatory system called a 'double' circulatory system?

• Because it has two hearts
• Because it has two separate circuits
• Because blood flows twice as fast
• Because it pumps twice the amount of blood

What are the two circuits in the double circulatory system?

• Left and right circuits
• Upper and lower circuits
• Pulmonary and systemic circuits
• Oxygenated and deoxygenated circuits

In the pulmonary circuit, where does the blood flow?

• From the heart to the body and back
• From the heart to the lungs and back
• From the lungs to the body and back
• From the body to the lungs and back

How many chambers does the human heart have?

• Two
• Three
• Four
• Six

What are the upper chambers of the heart called?

• Ventricles
• Atria
• Valves
• Arteries

What is the function of the atrioventricular valves?

• To pump blood
• To oxygenate blood
• To ensure blood flows in one direction
• To filter blood

When looking at a diagram of the heart, why does the left side appear on the right?

• It's a mirror image
• The diagram is incorrect
• It's from the perspective of the person the heart belongs to
• The heart is actually oriented that way in the body