Describe the location and importance of the following to various patterns of breathing: DRG, VRG, pre-Bötzinger complex, apneustic area, and pneumotaxic area
What will be an ideal response?
The DRG, VRG, pre-Bötzinger complex, apneustic area, and pneumotaxic areas are located within the medulla oblongata of the brain. The DRG consists of inspiratory neurons that stimulate inhalation muscle for restful inhalation. When these neurons stop firing, exhalation occurs. The VRG consists of inspiratory and expiratory neurons that stimulate breathing muscles for forced inhalation and forced exhalation. The pre-Bötzinger complex is thought to be responsible for stimulating the DRG and making restful, rhythmic breathing possible. The apneustic area stimulates inspiratory neurons in the DRG to prolong inhalation. The pneumotaxic area inhibits the DRG and overrides the effect of the apneustic area to limit the length of inhalation events during restful breathing.
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