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Embed code for: Physiology of the lung
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a brief description and few pictures for introduction of lung
Physiology of the lung
The significance of respiration (why do we have respiration?):
Provide Oxygen and expel Carbon dioxide
Regulating acid-base balance
For non-specific defense mechanism
The function of Respiring (why are we breathing?):
Oxygen utilization by tissue
Stages of breathing:
Mechanism of breathing:
Respiratory center in brain (medulla oblongata, pneumotaxic center, apneustic center) they generate action potential
Chest wall muscles contracts,leading to expansion of thoracic cavity
Lung will follow the chest as air from atmosphere rush into the lung
Pathway of air:
Bronchioles up to & including terminal bronchioles
Gas Exchange zone:
Mechanism of gaseous exchange:
Follow concentration gradient