Cardiovascular responses of the bullfrog (Rana catesbeiana) to thermal stimulation of the spinal cord.
Selective thermal stimulation of the spinal cord was performed in the bullfrog (Rana catesbeiana). Spinal cord warming caused an increase in systolic pressure of the truncus arteriosus, and cooling caused a decrease. Spinal cord warming caused an increase in systolic and pulse pressures of the conus arteriosus, and cooling caused a decrease. These results showed the temperature perceptibility of the spinal cord and a relationship between spinal cord temperature and autonomic functions in the frog as in other endothermic and ectothermic species.
Nagai
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Iriki
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D000818:Animals; D001794:Blood Pressure; D001831:Body Temperature; D002320:Cardiovascular Physiological Phenomena; D003080:Cold Temperature; D005260:Female; D006339:Heart Rate; D006358:Hot Temperature; D008297:Male; D011892:Rana catesbeiana; D013116:Spinal Cord / Q000502:physiology*; D013997:Time Factors