Exploring the Respiratory System

What is the primary function of the respiratory system?

• To circulate blood

• To filter blood

• To exchange gases

• To digest food

Where does the air go when you breathe in through your nose?

• Nasal cavity

• Stomach

• Esophagus

• Lungs directly

What is the function of cilia in the respiratory system?

• To filter out dust and debris

• To warm the air

• To produce sound

• To absorb nutrients

What prevents food from entering the windpipe?

• Nasal cavity

• Trachea

• Bronchi

• Epiglottis

What structure directly follows the trachea in the respiratory system?

• Pharynx

• Larynx

• Esophagus

• Bronchi

What is the role of alveoli in the respiratory system?

• To move air in and out

• To produce mucus

• To transport oxygen

• To exchange gases

Which part of the respiratory system is described as having a structure similar to 'grapes on a vine'?

• Trachea

• Bronchioles

• Larynx

• Alveoli

What protein in red blood cells carries oxygen?

• White cells

• Plasma

• Platelets

• Hemoglobin

How does the diaphragm contribute to breathing?

• It pumps the heart

• It holds the lungs

• It contracts to create a vacuum

• It filters the air

What happens to the diaphragm when you inhale?

• It relaxes

• It expands

• It contracts

• It hardens