Resp System, BIO 232 - ● Respiratory System ○ Delivery...

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Respiratory System: Delivery oxygen to the tissues of the body, including lung tissue The capillary bed represents where that gas will enter next We dispose of CO2 (waste), we also use this system for olfaction and speech When talking about respiration: ventilation is moving a volume of gas, external respiration is the gas exchange between alveoli (air sac cells) and cells that form blood capillary network in lungs (pulmonary capillaries) As you exhale, the purpose is to blow off acid (CO2) Once in the blood: you transport gases through the blood, and with internal respiration, the O2 diffuses from the blood to the tissue cells and CO2 diffuses from the tissue cells to the blood. Gross anatomy: Nostrils are passageways to the nasal cavity Superior conchae is in cranial nerve I Conchae allow swirling of air and leave extra time for contact, that way we can humidify air due to higher temp inside the body, allows for epithelial to keep wet/warm so they don't dry out.
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  • Fall '16
  • Cammie Shields
  • respiratory tree

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