Diagnostic Test

What are the main organs of the respiratory system?

• Heart

• Lungs

• Kidneys

• Liver

How many lobes does the right lung have?

• One

• Two

• Three

• Four

Which body part warms and moistens the air you breathe in?

• Lungs

• Trachea

• Nose

• Bronchi

What substance helps alveoli expand and prevents lung collapse?

• Mucus

• Surfactant

• Hemoglobin

• Plasma

What is the function of capillaries in the alveoli?

• To carry air to the lungs

• To filter out dust particles

• To connect arteries and veins

• To support the bronchial tubes

What is the role of the pulmonary artery?

• To carry oxygen-rich blood to the lungs

• To carry carbon dioxide-rich blood to the alveoli

• To remove waste products from the blood

• To produce surfactant

Which structure prevents the bronchial tubes from collapsing?

• Cartilage rings

• Pleura

• Diaphragm

• Lymph nodes

What happens to carbon dioxide in the alveoli?

• It enters the blood

• It is exhaled

• It is converted to oxygen

• It is stored in the lungs

Which body system works with the respiratory system to transport oxygen and nutrients?

• Nervous system

• Digestive system

• Circulatory system

• Endocrine system

What is the pleural cavity filled with?

• Air

• Blood

• Mucus

• Pleural fluid