Which of the following is an impoant functional parameter of pain receptors?: (A) Exhibit little or no adaptation, (B) Not affected by muscle tension, (C) Signal only flexion at joint capsules, (D) Can voluntarily be inhibited
Answer is A. Pain receptors exhibit little or no functional adaptation. Its impoance is that it allows the pain to keep the person apprised of a tissue-damaging stimulus as long as it persists.