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What is the name of the respiratory nucleus that resides in the pons? 1) pontine respiratory group (prg) 2) ventral respiratory group (vrg) 3) dorsal respiratory group (drg) 4) pre-Bötzinger complex (pre-BotC)

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Final answer:

The respiratory nucleus in the pons is known as the pontine respiratory group (PRG), consisting of the apneustic and pneumotaxic centers that regulate the depth and rate of breathing.

Step-by-step explanation:

The respiratory nucleus that resides in the pons is the pontine respiratory group (PRG). This group consists of the apneustic and pneumotaxic centers. The apneustic center is a double cluster of neuronal cell bodies that stimulate neurons in the dorsal respiratory group (DRG), controlling the depth of inspiration, particularly for deep breathing.

The pneumotaxic center is a network of neurons that inhibits the activity of neurons in the DRG, allowing relaxation after inspiration, and thus controlling the overall rate of breathing.

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