Pneumotaxic Center
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High Quality Content by WIKIPEDIA articles! The pneumotaxic center, also known as the pontine respiratory group (PRG), is a network of neurons in the rostral dorsal lateral pons. It consists of the Kölliker-Fuse nucleus and the medial parabrachial nucleus. The PRG antagonises the apneustic center, cyclically inhibiting inspiration. The PRG limits the burst of action potentials in the phrenic nerve, effectively decreasing the tidal volume and regulating the respiratory rate. Absence of the PRG results in an increase in depth of respiration and a decrease in respiratory rate. The Medial…mehr

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High Quality Content by WIKIPEDIA articles! The pneumotaxic center, also known as the pontine respiratory group (PRG), is a network of neurons in the rostral dorsal lateral pons. It consists of the Kölliker-Fuse nucleus and the medial parabrachial nucleus. The PRG antagonises the apneustic center, cyclically inhibiting inspiration. The PRG limits the burst of action potentials in the phrenic nerve, effectively decreasing the tidal volume and regulating the respiratory rate. Absence of the PRG results in an increase in depth of respiration and a decrease in respiratory rate. The Medial parabrachial nucleus is a nucleus of the pons which constitutes part of the pneumotaxic center. It gets its name from its location relative to the superior cerebellar peduncles, which is also known as the "brachia conjunctiva". The apneustic center of the lower pons appears to promote inspiration by stimulation of the I neurons in the medulla oblongata providing a constant stimulus. The apneustic centre of pons sends signals to the dorsal respiratory centre in the medulla to delay the 'switch off' signal of the inspiratory ramp provided by the pneumotaxic centre of pons.