Intro to pain Flashcards
Does nociception travel ipsilaterally or contralaterally up the spinal cord
Contralaterally
What is the function of the dorsal horn
Sensory
What is the function of the ventral horn
Motor
Describe the spinothalamic ascending pathway in pain
Discriminative aspect of nociception - fast pain
Describe the spinoreticular ascending pathway in pain
Responsible for arousal and affective (unpleasantness) aspects - dull pain
What ascending pathway transmits fast pain
Spinothalamic
What ascending pathway transmits dull pain
Spinoreticular
What opiate receptors exist
mu, delta, kamma
What is the PAG
Periaqueductal gray, rich in opiod receptors
What is the gate control theory of pain
There is a gate preventing excitation of ascending to the brain, when opened more pain is felt.
What are the three components of pain
Sensory-discriminative (intensity, location, duration)
Affective-motivational (unpleasantness + desire to escape it)
Cognitive component (judgement, beliefs, memory)