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Respiratory System

respsystemRespiratory System: bring in the O2 and excrete the CO2. Made up of upper and lower airways.

Technically speaking:

_ Ventilation is defined as moving CO2 in and out of the lungs

_ Oxygenation is defined as moving O2 in and out of the lungs

_ Respiration is the whole process together

 

 

Oxygen Saturation is measured by a pulse oximeter and refers to the % of hemoglobin in the blood that is bound to O2. Usually over 96%.

The majority of CO2 is transported in the form of bicarbonate ions. Which become very important over in the Acid Base section. Brain stem regulates respiration by sensing excess CO2 and upping ventilation, or lowered CO2 and decreasing ventilation. Backup system, hypoxic system is sensitive to levels of O2, not as fine tuned.

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