A sensation of physical or mental hurt or suffering that causes distress or agony
Pain
It states that pain is perceived whenever the stimulus intense enough
Pattern theory
Gate in the spinal cord called
Substantia Gelatinosa
The minimum amount of pajn stimulation of a person requires before feeling pain
Pain threshold
The maximum amount of pain and the duration of pain
Pain tolerance
The actual feeling of pain
Perception
The universal stimulus for pain
Bradykinin
Excessive sensitivity
Hyperalgesia
Pain that last less than 6 months
Acute pain
Pain that last more than 6 months
Chronic pain