[Response of respiratory neurons of the medulla oblongata to the septum stimulation in hypoxia].
In the oxygen deficiency conditions, we studied influence of irritation of ventral (BNST), lateral (LSN) and medial (MSN) nuclei of the septum on the impulse activity of the bulbar respiratory neurons and on respiration. Phases of hypoxia were the model of experiment. In conditions of normal atmospheric pressure, the electrical stimulation of BNST, LSN and MSN nuclei of the septum exerted inhibiting as well as activating influence with the inhibiting influence prevailing. In difficult conditions of hypoxia (7.5-8 thousand meters) on the reduction of the impulse activity of neurons, stimulation of septum nucleuses induced uncharacteristic reactions of those neurons.
Akopian
N S
NS
State University, Yerevan, 375049, 8 Charentsa St., Armenia.
Adamian
N Iu
NIu
Sarkisian
N V
NV
Arutiunian
R S
RS
D000200:Action Potentials; D000818:Animals; D004558:Electric Stimulation; D000860:Hypoxia / Q000503:physiopathology*; D008526:Medulla Oblongata / Q000166:cytology / Q000503:physiopathology*; D009474:Neurons / Q000502:physiology; D051381:Rats; D012119:Respiration; D012125:Respiratory Center / Q000166:cytology / Q000503:physiopathology; D012686:Septal Nuclei / Q000503:physiopathology*