KINE 3012 Chapter Notes - Chapter 13: Dorsal Respiratory Group, Hypoxic Hypoxia, Reversible Reaction

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Function of respiration obtain 02 for cells + eliminate co2 produced by cells. Respiratory system respiratory airways to lungs, the lungs, structures of thorax (chest), to produce movement of air in/out of lungs (gas exchange organ) Respiratory airways tubes that carry air b/w atmosphere + air sacs. Air sacs only site gases are exchanged b/w air (alveoli) and blood (capillary) Track of airway nasal passage (nose)/mouth-> pharynx (throat) leads to both respiratory and digestive-> trachea (windpipe for air) or oesophagus (for food) Larynx (voice box) at entrance of trachea, front lump of larynx adam"s apple , vocal cords found at opening of larynx. Vocal cords 2 bands of elastic tissue across opening of larynx, as air moves by they vibrate to produce diff. sounds, also close off trachea during swallowing. Track of trachea larynx (voice box at opening)-> 2 branches: left + right bronchi (enter left + right lungs)-> bronchioles (smaller branches within lungs)->alveoli.

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