we measured respiratory frequency ( fr ) , oxygen consumption ( vo2 ) , cardiovascular responses and arterial and mixed venous pco2 , po2 , ph and co2 in six pigeons during hyperthermia caused by ambient heating ( increase in body temperature = 1 degrees c ) and during heating of the spinal cord alone ( increase in vertebral canal temperature = 3 degrees c ) .
C0037925
spinal cord
C0037922
vertebral