Pain lecture 1 Flashcards
T/F the brain has nociceptors
False
-The brain has NO nociceptors
What is pain?
-An unpleasant sensory and emotional experience associated with actual or potential tissue damage
What are the elements of pain?
- Sensory-discriminative
- Cognitive
- Emotional/affective
What is the physiological process by which information on actual/potential tissue damage is conveyed to the CNS?
-Nociception
What are specialized ion channels on sensory nerve endings that respond to noxious stimuli?
-Nociceptors
What is pain resulting from activation of nociceptors as a result of actual or potential tissue damage and processing by the CNS?
-Nociceptive pain
What is a pathophysiological process, resulting from abnormal sensory processing, which does not signal actual or potential tissue damage, does not promote healing or repair, and may be considered a disease?
-Neuropathic/Neurogenic pain
What is somatic pain?
-Pain associated with musculo-skeleton system and skin and is well defined
What is visceral pain?
-Pain that is associated with internal organs and associated tissues and is dull, burning, and poorly defined
What are types of nociceptive pain?
- Somatic
- Visceral
- Inflammatory
What does anesthesia do to sensations?
-Blocks all sensations
What are the basic processes in nociception?
- Transduction
- Transmission
- Modulation
- Perception
Where does transduction occur?
-Nociceptor or nerve terminal
What is transmission?
-The action potential itself
What is modulation?
-The enhancement or diminishment of the the action potential
