Respiratory System Quiz

What is the major function of the respiratory system?

• Gas exchange; supply the body with O₂ and dispose of CO₂

• Pump blood throughout the body

• Break down food for nutrients

• Produce hormones for growth

Which of the following is NOT a key structure of the respiratory system?

• Nose

• Larynx

• Heart

• Diaphragm

Which of the following lists only structures that are part of the respiratory system?

• Nose, pharynx, larynx, trachea, lungs, diaphragm

• Nose, heart, trachea, lungs, stomach

• Larynx, trachea, liver, diaphragm, lungs

• Pharynx, trachea, kidneys, lungs, diaphragm

Arrange the following structures in the order that air passes through them during inhalation: nose, trachea, pharynx, larynx, lungs.

• Nose → Pharynx → Larynx → Trachea → Lungs

• Nose → Larynx → Pharynx → Trachea → Lungs

• Nose → Trachea → Pharynx → Larynx → Lungs

• Nose → Lungs → Trachea → Larynx → Pharynx

What is the role of the epiglottis during swallowing?

• It warms the air

• It blocks the larynx to prevent food from entering the airway

• It produces mucus

• It absorbs nutrients

How many lobes does the right lung have?

• 2

• 3

• 4

• 1

Why are bronchioles considered the smallest passageways in the respiratory system?

• They are less than 1 mm in diameter

• They are the first branches from the trachea

• They are located outside the lungs

• They only exist in the left lung

What do bronchioles empty into in the respiratory system?

• Alveolar ducts

• Trachea

• Capillaries

• Diaphragm

During gas exchange, what happens to oxygen (O₂)?

• O₂ moves into the alveoli and out of the blood

• O₂ moves into the blood and out of the alveoli

• O₂ stays in the alveoli

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-3

What is the main function of the alveoli in the human respiratory system?

• Pump blood

• Exchange gases

• Digest food

• Produce hormones