PHTY209 Lecture Notes - Lecture 9: Trigeminal Ganglion, Posterior Grey Column, Nociceptor
Document Summary
8. 1 define pain according to the definition used by the international association for the study of. Pain an unpleasant sensory and emotional experience associated with actual or potential tissue damage. Sensory and emotional physical and psychological response experience, emotion and culture all contribute to response pain is always subjective, difficult to measure. This definition avoids tying pain to a stimulus. Sensory-discriminative: sensation of pain location, quality (burning, dull, sharp), intensity and duration. Motivational-effective: the unpleasantness of pain or how much the pain bothers the person. Cognitive-evaluative: puts pain in terms of past experiences and probability of outcomes. 8. 3 describe the: a) location or nociceptors: receptors are common in superficial skin, joint capsules, around bone (periosteum), walls of blood vessels, meninges and some internal organs (visceral pain). Other tissues have few nociceptive endings e. g. brain has none: b) role of each of the first, second and third order neurons in pain perception pain physiology: the nociceptive system comprises the process of:
