Quiz on Respiratory and Circulatory Systems

What is the primary function of the respiratory system?

• To pump blood throughout the body

• To filter waste from the blood

• To supply the blood with oxygen

• To transport nutrients to cells

Which organ is primarily responsible for gas exchange?

• Kidneys

• Lungs

• Liver

• Heart

What is the role of the diaphragm during inhalation?

• It expands the rib cage

• It contracts and moves downward

• It relaxes and moves upward

• It remains stationary

Which blood vessel carries oxygenated blood away from the heart?

• Capillaries

• Veins

• Pulmonary arteries

• Aorta

What is the function of the alveoli?

• To pump blood

• To transport blood

• To exchange gases

• To filter air

Which part of the heart receives deoxygenated blood from the body?

• Right ventricle

• Left ventricle

• Right atrium

• Left atrium

What happens to the diaphragm when we exhale?

• It contracts and moves downward

• It relaxes and moves upward

• It pulls the rib cage outward

• It expands the chest cavity

Which of the following is NOT a part of the respiratory system?

• Heart

• Bronchi

• Trachea

• Alveoli

What is the main function of the circulatory system?

• To transport oxygen and nutrients

• To filter waste

• To regulate body temperature

• To digest food

Which type of circulation carries blood to the lungs?

• Cerebral circulation

• Coronary circulation

• Systemic circulation

• Pulmonary circulation