PAIN
Today’s SessionDevelop an understanding of why    we feel pain
Pain physiology
Acute pain and inflammation
Chronic pain
Why does pain persist?
What can I do about my pain?Why do we need pain?Extremely important in protecting our tissues
Alarms us to take action
Learn not to repeat the same activity again!!
Vital to our survival – motivates us to take action and warns against threatsAcute Injury and InflammationWhen a tissue is injured, blood and other cells infiltrate the area
This is what causes swelling, warmth and redness
Inflammation promotes healing, as the correct cells are transported to the area to do their jobs
A necessary part of inflammation is to release chemicals which sensitise nervesPhysiologyPeripheral nerve endings - nociceptors
Detect the harmful stimulus, and transmit this information to neurones and to the spinal cord
2nd order nociceptors (in the Spinal cord) aka danger messenger neurones – transmit danger messages to the brain
These signals are transmitted to the brain to be processedPhysiologyThe Brain decides whether this stimulus is harmful to us, and ultimately decides whether we are in pain
The Brain will come compute this information, and elicit the necessary actionThe wonderful brainThe brain activates several systems that work together to get you out of danger:
 Sympathetic nervous system
 Motor system
 Endocrine system

Physical Pain