Respiratory System Quiz

Which of the following is a major function of the respiratory system?

• Digesting food

• Exchanging gases between the blood and external environment

• Filtering waste from the blood

• Regulating body temperature

Where does gas exchange occur in the respiratory system?

• In the bronchi

• In the nasal cavity

• In the alveoli

• In the trachea

What role does the diaphragm play in respiration?

• It warms and humidifies the air

• It produces mucus to trap particles

• It contracts and relaxes to facilitate breathing

• It filters air entering the lungs

Which part of the respiratory system is responsible for warming and filtering incoming air?

• The diaphragm

• The nasal cavity

• The bronchioles

• The alveoli

What is the primary function of the alveoli?

• To protect the lungs from infection

• To transport air to the lungs

• To exchange oxygen and carbon dioxide

• To produce sound

Which of the following structures is part of the upper respiratory tract?

• Alveoli

• Nasal cavity

• Bronchi

• Lungs

What is the role of the rib cage in respiration?

• To protect the heart

• To produce mucus

• To expand and contract the chest cavity

• To filter air

Which of the following is NOT a component of the lower respiratory tract?

• Trachea

• Bronchi

• Larynx

• Nasal cavity

How does oxygen enter the bloodstream from the alveoli?

• Through osmosis

• Through diffusion

• Through active transport

• Through filtration

What is the primary function of the trachea?

• To exchange gases

• To transport air to the bronchi

• To filter blood

• To produce sound