Which of the following BEST describes the response of thermoreceptor afferents when temperature decreases from 35°C to 25°C?
A) Afferents associated with both warm and cold receptors show an increase in the frequency of action potentials.
B) Warm -receptor afferents show an increase in the frequency of action potentials, whereas cold -receptor afferents show a decrease in the frequency of action potentials.
C) Warm -receptor afferents show a decrease in the frequency of action potentials, whereas cold -receptor afferents show an increase in the frequency of action potentials.
D) Afferents associated with both warm and cold receptors show a decrease in the frequency of action potentials.
E) Warm -receptor afferents show a decrease in the frequency of action potentials, whereas cold -receptor afferents fire at the same frequency.

Question

Quizplus · Accepted Answer

When the temperature decreases from 35°C to 25°C, warm-receptor afferents decrease their frequency of action potentials because they are less stimulated by lower temperatures, while cold-receptor afferents increase their frequency of action potentials as they are more stimulated by the drop in temperature.

Which of the Following BEST Describes the Response of Thermoreceptor