ON THE RESPONSES OF CHICKEN GIZZARD TO STIMULATION OF VAGUS, SPLANCHNIC NERVES AND MEDULLA OBLONGATA

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概要

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• The responses of the chicken gizzard to stimulation of the vagus, splanch-nic nerves and medulla oblongata were examined.<BR>1. Both excitatory and inhibitory responses of gizzard were obtained to stimulation of the vagus and splanchnic nerves in each. The excitatory response was abolished after the application of atropine, and the inhibitory response was abolished after the application of propranolol and C<SUB>6</SUB>.<BR>2. The stimulation of medulla oblongata caused both excitatory and inhibitory effects to the stomach movements. The stimulated areas were examined histologically. The excitatory areas (vagal & splanchnic) were found in the dorsal nucleus of vagus and dorsal region of reticular formation. The inhibitory areas (vagal & splanchnic) were also found in the dorsal nucleus of vagus, reticular formation and solitary tracts.

• 日本平滑筋学会の論文

著者

• 藤井 一元

  広島大学医学部第2生理学教室

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