An element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the rest of the matter in the world.
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 Koelliker-KÃ¶lliker fuse nucleus and the medial parabrachial. Nucleus it is considered an antagonist to the apneustic, center which produces abnormal breathing during. inhalationespiratory effects [edit]. The PRG antagonizes the apneustic center, cyclically inhibiting inhalation. The PRG limits the burst of action potentials in the phrenic nerve, effectively decreasing the tidal volume and regulating the respiratory rate.
The Pons. The Pons, which is also part of the brain stem, is below the Midbrain and above the Medulla Oblongata. Motor and sensory tracts run along the front surface of the pons.The sensory axons are located behind the motor axons. The cell bodies of cranial nerves V and VI are located in the pons.he Pons. The Pons, which is also part of the brain stem, is below the Midbrain and above the Medulla Oblongata. Motor and sensory tracts run along the front surface of the pons.