Respiratory System-Amoeba Sisters

What is the main function of the human respiratory system?

• To produce energy

• To digest food

• To exchange gases

• To circulate blood

Which part of the respiratory system is known as the voice box?

• Nasal cavity

• Pharynx

• Larynx

• Trachea

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What do alveoli resemble in appearance?

• Small balloons

• Tree branches

• Tiny sponges

• Bunch of grapes

How does the nervous system help regulate breathing?

• By reducing body temperature

• By increasing heart rate

• By adjusting pH levels

• By controlling blood sugar

What is the role of surfactant in the lungs?

• To increase blood flow

• To reduce surface tension

• To filter air

• To strengthen alveoli walls