Respiratory System Quiz

What is the main function of the respiratory system?

• To digest food

• To circulate blood

• To breathe in oxygen and breathe out carbon dioxide

• To produce hormones

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

• Lungs

• Stomach

• Trachea

• Diaphragm

What does the respiratory system help protect you from?

• Harmful particles and germs

• Excessive sunlight

• Loud noises

• High temperatures

What is the role of the diaphragm in the respiratory system?

• To filter blood

• To aid in breathing

• To digest food

• To produce sound

What is the main site for oxygen and carbon dioxide exchange in the human body?

• Bronchi

• Alveoli

• Trachea

• Diaphragm

What is the primary gas expelled by the respiratory system?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

Which part of the respiratory system is involved in protecting it?

• Skin

• Ribs

• Hair

• Teeth

Which part of the respiratory system is referred to as the "windpipe"?

• Sinuses

• Larynx

• Trachea

• Diaphragm

Where does the respiratory tract start?

• Lungs

• Diaphragm

• Nose and mouth

• Bronchi

Which structure in the respiratory system is responsible for voice production?

• Larynx

• Trachea

• Bronchi

• Alveoli