epidermal thermal conductivity ( k ) was calculated for the cat footpad by measuringtransepidermal heat flux and temperature gradient ( ? t ) while changes in stratum corneum water content were produced by `` '' internal hydration '' '' ( ih ; eccrine sweat gland activity by nerve stimulation ) or by `` '' external hydration '' '' ( hh ; exposure to air saturated with water vapor ) .
C0014520
epidermal
C0221921
stratum corneum