Question

Where in the respiratory system would surfactant be found?

(1 point)
Responses

in the nasal passages with the cilia

in the nasal passages with the cilia

lining the trachea, helping to warm air as it passes through

lining the trachea, helping to warm air as it passes through

in the alveoli, helping them open and close

in the alveoli, helping them open and close

in the diaphragm, allowing the muscle to expand and retract

Answer 1

Surfactant would be found **in the alveoli, helping them open and close**.