THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Thermoreceptors can be separated into receptors for warmth and cold detection. According to results of differential nerve blocks and response latencies, the warmth sensation has been attributed to C fibers, whereas cold detection is a function of A fibers.

Detailed explanation-2: -The static activity of many cold receptors reaches a maximum at temperatures around 20–30 °C (68–86 °F). Some thermoreceptors have lower thresholds (i.e., less than 30 °C [86 °F]) and maximal activity at colder temperatures (i.e., less than 20 °C [68 °F]).

Detailed explanation-3: -However, some thermoreceptors are polymodal, meaning they are capable of responding to both hot and cold stimuli, as well as to certain chemicals, such as capsaicin and menthol, that initiate sensations similar to hot and cold.