PSL301H1 Lecture 15: L15 Respiratory System Function & Structure
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PSL301H1 Full Course Notes
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Describe the structures of the respiratory system and their function. Explain how the respiratory system is protected from pathogens/foreign particles. Describe how blood is transported to and from the lungs. In sunday night"s major league game between the cubs and the marlins, chicago outfielder tyler. Colvin was impaled with the shard of broken bat as he headed from third base to home plate. Outside the lungs is 0 mmhg (convention), the pleural cavity is -3 mmhg, and the alveolar pressures are +1mmhg during expiration and =1mmhg during inspiration. Normal atmospheric pressure is 760mmhg (outside the lungs) as you increase in altitude, the pressure drops. Negative intrapleural pressures + ribs pulling outwards and the elasticity of the lungs pulling inwards, causes the lungs to be pulled tight against the thoracic cage. Intrapleural pressure keeps lungs from collapsing: the bat penetrated tyler"s pleural cavity.
