Mr Niemis' Flipped Lessons Respiratory System

What is the main job of the respiratory system?

• To break down food for energy

• To move blood around the body

• To take in oxygen and get rid of carbon dioxide

• To help us speak and sing

Tiny air sacs in the lungs where oxygen enters the bloodstream and carbon dioxide leaves are called what?

• Trachea

• Bronchial tree

• Alveoli

• Vocal cords

Which muscle helps you breathe by moving up and down to change the pressure in your chest, allowing air to enter and leave your lungs?

• Vocal cords

• Diaphragm

• Pharynx

• Epiglottis

What is the name of the small flap that covers your windpipe when you swallow, preventing food from entering your lungs?

• Pharynx

• Larynx

• Epiglottis

• Vocal cords