Thermoreceptors (cold & warm)

Category
Temperature
Function
Skin and core temperature
Quantity
Cold spots outnumber warm spots
Density
Highest on face, lips, tongue, hands; sparse on trunk
Distribution
Skin plus hypothalamic and visceral monitors

Relative Deployment

Notes

Cold peaks near ~27 °C, warm near ~45 °C. Distinct TRP-channel families. Face and tongue are the densest cutaneous fields.

Interacting Systems & Components