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Journal of Veterinary Medical Science | 1962

ELECTROMYOGRAPHIC STUDIES ON THE RESPIRATORY MUSCLES OF THE DOMESTIC FOWL

Hiroshi Kadono; Toshiaki Okada

安静呼吸時における家鶏の胸部, 腹部および背部にある諸筋の筋電図を, 機械的呼吸曲線を指標とし, 電磁オッシログラフで記録し, 筋と呼吸運動との関係を明らかにした. 誘導電極には, 同心型針電極, あるいは GESELL が用いたいわゆる floating electrode を使用し, 単一 NMU を分離導出した. さらに単一 NMU の放電間隔を測定し, interval diagram を描き, 放電パターンについて検討を加えた. 1) 肋間筋のうち, 第2~4外肋間筋, 内肋間筋の肋軟骨部, および第1, 2内肋間筋の骨部では吸息相に同期した放電が見られた. その他の肋間筋, すなわち第5, 6外肋間筋, 肋軟骨部の筋, および第3肋骨腔以後の内肋間筋の骨部は, 呼息筋であった, ただし, 第5外肋間筋と, この部の内肋間筋の肋軟骨部では, 個体によって, 吸息時に放電が見られることもあれば, また吸息・呼息の両相において, 交互に放電が観察される例もあった. 2) 腹筋は, いずれも積極的に呼息運動に参加する呼息筋であった. 斜角筋, 胸横筋, 肋骨挙筋, 鈎突肋筋からは, 吸息時に放電が見られた. 広背筋, 憎帽筋, 菱形筋など, 背部にあるものでは, 一般に, 呼息相に同期した放電の出現または増加が認められた. 3) 以上の諸筋の interval diagram から示される放電型は, GESELL のいう slowly augmenting pattern である. 多くの呼息筋もこの型を示すことは, 他の動物と異なる家鶏呼吸筋の特微と考えられる. なお肋間にある呼息筋からは,まれに steady-state pattern も検出された. 放電頻度には, かなり広範囲にわたる変動が見られた. 多くの場合, これは1秒5~40回の範囲にあった. 吸息または呼息, いずれかの相に現われる spike の数は, 7~40であった. 4) 家鶏で呼吸運動に関与する諸筋から得られた interval diagram は, 4つの型に分類することができる. A型は, 筋の収縮期間中, 放電間隔が次第に短縮して行く典型的な slowly augmenting pattern である. B型は, 最初の1~2個の放電間隔が短縮しているが, その後はA型と同様の経過をとる型である. C型は,これに反して, 最後の1~2個の放電間隔がやや廷長している型である. B型とC型は, A型の変形と考えられるが, 本実験では, かなり頻繁に認められた. D型は steady-state pattern である(Fig. 7).


The Japanese Journal of Veterinary Anesthesiology | 1975

STUDIES ON ELECTROACUPUNCTURE ANALGESIA (EAA) IN THE DOG

Kaoru Kitazawa; Katsutoshi Ohno; Hisao Honjo; Hiroshi Kadono; Isao Kita

From among the human acupucture points illustrated in a figure, the authors selected four equivalent points, Kyokuchi (Li 11), Inkoten, Ashinosanri (S 36) and Bokoku, in the dog. When needles were inserted at these points to give electric stimulation, analgesia was recognized over a wide part of the body.The present report deals with electrical conditions to obtain analgesia in dogs.1) When an induction stimulator was used, a bilateral pulse wave appeared as an output wave. It was shown as a transformed rectangle wave with a duration of 0.3 msec on the anode side and as a spike wave with a duration of 0.25 msec on the cathode side.The output voltage of that stimulator was 180 VP_P at the maximum, as measured by a synchroscope, and the output current 22 mA.rms at the maximum, as measured by a high-frequency ammeter.2) Some electric conditions for a successful introduction of analgesia were as follows : 15-50 Hz in frequency, 0.5-8.0 VP_P in load voltage, 0.1-5.0 mA.rms in load current, and about 30 minutes as flowing time.3) In order to supply an effective stimulation, it was necessary to select such electrical conditions as to avoid electrolysis of the needle and burning of the tissue.To provide a constant electric stimulation continually a needle had to be fixed firmly. Adequate polarity of electrodes, minimum differences in resistant value among the four electrodes, and appropriate controled techniques for supplying the current were needed to obtain a successful analgesia.


Poultry Science | 1963

Electromyographic Studies on the Respiratory Muscles of the Chicken

Hiroshi Kadono; Toshiaki Okada; Katsutoshi Ono


Poultry Science | 1968

Electroencephalogram of the Japanese Quail (Coturnix coturnix japonica) during Non-anesthetized and Anesthetized Periods

Takanori Ookawa; Hiroshi Kadono


The Japanese journal of veterinary science | 1985

Changes of body temperature related to oviposition and ovulation induced by LH in the domestic hen.

Hiroshi Kadono; Takaharu Yamade


Poultry Science | 1964

Effects of Certain Autonomic Drugs on the Electrocardiogram of the Chicken

Hiroshi Kadono; Toshiaki Okada; Katsutoshi Ohno


The Japanese journal of veterinary science | 1977

Electroencephalograms during electroacupunctural analgesia in the dog.

Hiroshi Kadono; Katsutoshi Ohno; Kaoru Kitazawa; Hirotaka Makie


Research bulletin of the Faculty College of Agriculture Gifu University | 1988

Electrocardiogrphic studies on Snakes. : Lead methods and Standard Values

Kai-Xun Zhang; Katsutoshi Ohno; Hiroshi Kadono


The Japanese journal of veterinary science | 1987

ニワトリ網膜電図 (ERG) にみられる律動様小波について

Hiroshi Kadono; Masaaki Kitamura; Yoshinori Iwano


Research bulletin of the Faculty College of Agriculture Gifu University | 1987

Studies on the Electrocardiogram of the Frog. : Lead methods and Standard values

Kai-Xun Zhang; Katsutoshi Ohno; Hiroshi Kadono

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