Pre-Bötzinger complex in cats: respiratory neuronal discharge patterns.
Patterns of respiratory neuronal discharge in the pre-Bötzinger complex, hypothesized as a brainstem site generating respiratory rhythm, are described in adult cats. Signals were recorded from neurons in the Bötzinger complex, pre-Bötzinger complex and rostral ventral respiratory group (rVRG) of anesthetized adult cats. The pre-Bötzinger complex, located caudal to expiratory-modulated Bötzinger neurons, contained a mix of neurons with inspiratory-modulated, expiratory-modulated, or phase-spanning patterns of impulse activity, in contrast to the more homogenous neuronal distributions characteristic of adjacent Bötzinger and rVRG regions.
Connelly
C A
CA
Department of Physiological Science, University of California, Los Angeles 90024-1527.
Dobbins
E G
EG
Feldman
J L
JL
D000818:Animals; D001933:Brain Stem / Q000166:cytology / Q000502:physiology*; D002415:Cats; D009474:Neurons / Q000502:physiology*; D012119:Respiration / Q000502:physiology*