Dog behaviour as related to spinal cord temperature

1976 ◽  
Vol 32 (1) ◽  
pp. 66-68 ◽  
Author(s):  
M. Cormarèche-Leydier ◽  
M. Cabanac
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Temperature

Midbrain neuronal responses to local and spinal cord temperatures

1976 ◽  
Vol 231 (5) ◽  
pp. 1573-1578 ◽  
Author(s):  
T Hori ◽  
Y Harada
Keyword(s):  
Spinal Cord ◽  
Firing Rate ◽  
Reticular Formation ◽  
Single Unit ◽  
Neuronal Responses ◽  
Heating And Cooling ◽  
Midbrain Reticular Formation ◽  
Spinal Cord Temperature ◽  
Temperature Signal ◽  
Cold Sensitive

Water-perfused thermodes were implanted over the lumbothoracic spinal cord and unilaterally in the midbrain of urethan-anesthetized rabbits. Single-unit activities were recorded with steel microelectrodes from the thermosensitive neurons in the midbrain reticular formation (MRF), and the effects of heating and cooling of the spinal cord were studied. Of 38 cold-sensitive MRF neurons studied, 7 units decreased their firing rate upon elevation of spinal cord temperature (Tsc) and 3 units showed the opposite type of response to Tsc. The remaining 28 cold units were not affected by the changes in Tsc between 30 and 43 degrees C. Of 17 warm units, 3 units increased and one unit decreased the firing rate during spinal cord heating. These results suggest that the temperature signal arising from thermosensitive structures in the spinal cord may be transmitted to some of the locally thermosensitive neurons in the MRF.

Effect of spinal cord temperature on carotid blood flow in the Pekin duck

1980 ◽  
Vol 385 (3) ◽  
pp. 269-271 ◽  
Author(s):  
C. Bech ◽  
W. Rautenberg ◽  
B. May ◽  
K. Johansen
Keyword(s):  
Spinal Cord ◽  
Blood Flow ◽  
Pekin Duck ◽  
Carotid Blood Flow ◽  
Spinal Cord Temperature

Spinal Cord Temperature

2004 ◽  
Vol 100 (1) ◽  
pp. 198-199
Author(s):  
Barry A. Harrison ◽  
Timothy S. J. Shine ◽  
Martin L. De Ruyter ◽  
Michael J. Murray
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Temperature

Spinal Cord Injury in the Monkey

Neurosurgery ◽  
1979 ◽  
Vol 5 (5) ◽  
pp. 583-587 ◽  
Author(s):  
Perry Black ◽  
Richard H. Shepard ◽  
Ronald S. Markowitz
Keyword(s):  
Spinal Cord ◽  
Temperature Gradient ◽  
Practical Importance ◽  
Posterior Surface ◽  
Hypothermic Perfusion ◽  
Artificial Cerebrospinal Fluid ◽  
Cord Injury ◽  
Spinal Cord Temperature ◽  
Rate Of Cooling ◽  
Impact Injury

Abstract We have investigated the effectiveness of surface cord cooling in reducing spinal cord temperature with respect to the rate of cooling and the temperature gradient within the spinal cord parenchyma. Another question of some practical importance if spinal cooling is to be used clinically is that of the temperature within the spinal cord as a function of the dura being intact or open. In five monkeys, a laminectomy was carried out at T-10 and an impact injury of 350 g-cm force was applied to the spinal cord with the dura intact. Hypothermic perfusion with Elliott's B solution (artificial cerebrospinal fluid) was started, and we measured temperatures in the spinal cord with a thermistor probe mounted on a stereotactic drive. A series of measurements were made with the dura intact and the measurements were then repeated with the dura open. For comparison, we also recorded temperatures in one animal that had not been cord-injured. The rate of cord cooling was rapid during the first 3 minutes of hypothermic perfusion, after which there was a slight further reduction in cord temperature; a low level plateau of 6.7° C was reached within 21 minutes after the start of cooling. The temperature gradient at varying depths of the spinal cord was approximately 6° C (3.8° C at the posterior surface to 10.1° C in the deepest portion of the spinal cord), representing a temperature gradient of 1.3° C/mm of cord tissue. Transmission of the cooling effect from perfusate to the spinal cord was not appreciably affected by the dura being intact or open.

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