Explain referred and phantom pain

Question 1

Dermatome

Answer 1

A segment of skin supplied by a specific spinal nerve

Question 2

Referred pain

Answer 2

When pain is perceived to be coming from the wrong area - nociceptor pain activation perceived as cutaneous sensation

Question 3

Phantom pain

Answer 3

The cell bodies of the sensory neurons that innervated the limb remain alive, as they were not physically a part of the limb but instead resided within the posterior root ganglia of the spinal cord