AROUSAL EFFECT OF AFFERENT DISCHARGES FROM MUSCLE SPINDLES URON ELECTROENCEPHALOGRAMS IN CATS
نویسندگان
چکیده
منابع مشابه
Interaction of prostaglandin E2 and bradykinin in the induction of afferent splanchnic nerve discharges in cats.
In anesthetized cats, the administration of either bradykinin (BK) (0.3-3 micrograms/kg) or prostaglandin E2 (PGE2) (1-30 micrograms/kg) into the cranial mesenteric artery dose-dependently evoked the firing discharge in the proximal end of the afferent greater splanchnic nerves with a latency of about 10 sec, the pronounced contraction of the longitudinal muscle of the jejunum, and changes in b...
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Experiments were carried out to determine whether there are separate drives from the selected neuronal networks of the brainstem affecting the discharge patterns of laryngeal and respiratory pump muscles during cough. Twenty-four non-decerebrate spontaneously breathing cats anesthetized with sodium pentobarbitone were used. Microinjections of kainic acid into the lateral tegmental field of the ...
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Stretching of the muscle spindle produces a receptor potential (a local depolarization) in the muscle spindle which gives rise to repetitive spikes in the sensory nerve (1). In ad dition, it has been suggested that the dynamic component of the receptor potential is simply the result of a change in membrane capacity, and that the successive static component may be due to a change in membrane per...
متن کاملEffects of changes in pH on the afferent impulse activity of isolated cat muscle spindles.
Muscle spindle activity has been shown to decrease in the sustained contracting muscle. The effect has been assumed to result from a declining fusimotor drive. Since accumulation of metabolites including H(+), lactate and CO(2) might also affect the receptor in the fatiguing muscle, the impulse activity of muscle spindles isolated from the cat tenuissimus muscle was characterized under varying ...
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The impulse activity of muscle spindles isolated from the cat tenuissimus muscle was investigated under varying concentrations of the L-type calcium channel blocker nifedipine. At a concentration of 25 microM nifedipine impulse activity was clearly diminished in both primary and secondary endings. However, low concentrations of the drug (5-10 microM) exerted unexpected excitatory effects. The d...
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ژورنال
عنوان ژورنال: The Japanese Journal of Physiology
سال: 1964
ISSN: 1881-1396,0021-521X
DOI: 10.2170/jjphysiol.14.344