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Respiratory - INTRODUCTION The two systems that cooperate...

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INTRODUCTION The two systems that cooperate to supply O 2 and eliminate CO 2 are the cardiovascular and the respiratory system. The respiratory system provides for gas exchange. The cardiovascular system transports the respiratory gases. Failure of either system has the same effect on the body: disruption of homeostasis and rapid death of cells from oxygen starvation and buildup of waste products. Respiration is the exchange of gases between the atmosphere, blood, and cells. It takes place in
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Respiratory System Anatomy (Figure 23.1). Nose Pharynx = throat Larynx = voicebox Trachea = windpipe Bronchi = airways Lungs Locations of infections upper respiratory tract is above vocal cords lower respiratory tract is below vocal cords The conducting system consists of a series of cavities and tubes - nose, pharynx, larynx, trachea, bronchi, bronchiole, and terminal bronchioles - that conduct air into the lungs. The respiratory portion consists of the area where gas exchange occurs - respiratory bronchioles, alveolar ducts, alveolar sacs, and alveoli.
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5 Nose -- Internal Structures Large chamber within the skull Roof is made up of ethmoid and floor is hard palate Internal nares (choanae) are openings to pharynx Nasal septum is composed of bone & cartilage Bony swelling or conchae on lateral walls
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Pharynx
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