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Breathing And The Lungs 1) Complete the diagram of the breathing system using the words below:
Diaphragm
Epiglottis
Lung
Bronchioles
Bronchi
Larynx (voice box)
Trachea (wind pipe)
Ribs
Intercostal Muscles
When you breathe in:
Your diaphragm goes _________ (down/up).
Your _______________ (epiglottis/intercostal muscles) contract causing your ribs to ____________(expand/move inwards).
Your lungs get ________ (bigger/smaller).
When you breathe out:
Your diaphragm goes ____________ (down/up).
Your ________________ (epiglottis/intercostal muscles) relax and your ribs ____________ (expand/move inwards).
Your lungs get _________ (bigger/smaller).
2) Complete the sentences below by choosing from the words in brackets:
