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phisiology chapter17

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QuestionAnswer
Pulmonary Ventilation movement of air in & out of the lungs
regulate PH, filter air, venous return, vocalization functions of respiration
Left Lobe of Lungs 2 lobes - because of cardiac notch
Right lobe of lungs 3 lobes
Upper part of respiratory system oral & Nasal cavity
transports air and food Pharynx
keeps trachea open cartilage rings
becomes primary bronchi Trachea
cillia move mucus out of resp system - resp escalator
Alvioli functional unit of the resp system
goblet cells make mucus
Type II cells make surfactant in alveoli
Type I cell thin cells associated with respiration
macrophage destroy pathogens in alveoli
pleura connective tissue that surrounds the lungs
visceral pleura in direct contact with the lungs
Parietal pleura lines the wall of the lung cavity
separates abdominal cavity from pelvic cavity diaphragm
muscle that aids in inhalation external intercostals
exhalation pressure in alveolous greater than atmospheric pressure
PRESSURE GRADIENT as lungs expand pressure drops
compliance determined by surfactant & elasticity in lungs
resistance effected by diameter of airways
epinephrine dialates airway & decrease resistance
CO2 dilates airway & decreases resistance
histimine constrictor - increases resistance
cortical steroids reduces swelling of airways
Tidal Volume amount inhaled and exhaled at rest
minute ventilation amount of air in/out in one minute
Created by: goodbunn
 

 



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