Answer to Question 1
ANS: C
Pain perception, also known as nociception, is an individual's awareness of the feeling of pain. Pain tolerance is an individual's ability to endure pain. Pain threshold is the point at which an individual first acknowledges or interprets a sensation as being painful. Pain is a sensation characterized by a group of unpleasant perceptual and emotional experiences that trigger autonomic, psychological, and somatomotor responses.
Answer to Question 2
ANS: D
Neuropathic pain results from injury to the peripheral or central nervous system, such as trigeminal neuralgia. Nociceptive pain is the result of a stimulus to pain receptors. Nociceptive pain is usually described as dull and aching. Visceral pain originates from the abdominal and thoracic regions.