Mots Croisés Respiratory SystemVersion en ligne Fill the crossword about respiratory system. par Nancy Gómez 1 Collapsed lung 2 Where cellular respiration takes place 3 Prevents food entering airway 4 Muscle used for breathing 5 Air sacs 6 Opening with vocal cords 7 Tubes from trachea to lungs 8 Space at the back of the oral cavity 9 Lack of oxygen tissues 10 Cavity where lungs sit 11 Voice box 12 Required for cellular respiration 13 Fluid build-up in air sacs, caused by altitude sickness 14 Pause in breathing during sleep 9 14 10 4 3 7 2 1 5 11 13 12 6
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