micro-electrode multi-unit recordings of muscle nerve sympathetic activity ( msa ) involved in cardiovascular homeostasis or skin nerve sympathetic activity ( ssa ) involved in thermoregulation were made in the right peroneal nerve of 48 healthy volunteers during performance of the cold pressor test , i.e . immersion of one hand in ice water ( 2 +/- 0.5 degrees c ) for 1 min .
C0020746
ice
C0043047
water