Respiratory System Quiz

What is the function of the human respiratory system?

• Regulation of body temperature

• Digestion of food

• Exchange of gases

• Transport of nutrients

What is the main purpose of cellular respiration in the body?

• To make ATP

• To regulate blood pH

• To produce oxygen

• To produce carbon dioxide

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

• To exchange gases in the alveoli

• To filter air

• To warm and humidify air

• To prevent food from entering the trachea

What is the function of the cartilage in the trachea?

• To produce mucus

• To support and keep the trachea open

• To warm the air

• To exchange gases with the blood

Where does the gas exchange actually occur in the respiratory system?

• Alveoli

• Larynx

• Pharynx

• Bronchioles

Which body system works closely with the respiratory system to exchange gases?

• Nervous system

• Digestive system

• Skeletal system

• Circulatory system

What is the role of the intercostal muscles in respiration?

• To produce surfactant

• To warm and humidify air

• To expand and contract the thoracic cavity

• To regulate blood pH

What regulates the involuntary control of breathing in the body?

• Nervous system

• Hormones

• pH scale

• Blood pressure

What is the purpose of surfactant in the alveoli?

• To lower surface tension and help alveoli inflate

• To increase surface tension

• To prevent gas exchange

• To warm the air

What is the condition that can occur in premature babies due to lack of surfactant?

• Asthma

• Respiratory distress syndrome (RDS)

• Bronchitis

• Emphysema