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Two respiratory nuclei in medulla oblongata Inspiratory center(dorsal respiratory gtOupR more frequently they fire, more deeply you, inhale longer duration they fire, breath is prolonged slow rate Expiratory center(ventral respiratory group, VRG involved in forced Pneumotaxic center expiration pneustic center Respiratory Dorsal respiratory Medullary group center in brain stem center group6 Two respiratory nuclei in medulla oblongata Expiratory center (ventral respiratory group, VRG) •involved in forced expiration Inspiratory center (dorsal respiratory group, DRG) • more frequently they fire, more deeply you inhale • longer duration they fire, breath is prolonged, slow rate
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