Final answer:
Neuropathic pain examples are diabetic neuropathy, trigeminal neuralgia, and nerve root compression, which are related to nervous system damage, unlike aching muscles and joint pain that typically signify nociceptive pain.
Step-by-step explanation:
Neuropathic pain arises due to damage or disease affecting the somatosensory nervous system. Examples of neuropathic pain include conditions such as diabetic neuropathy, trigeminal neuralgia, and nerve root compression. Aching muscles and throbbing pain at knee joint are more commonly associated with nociceptive pain, indicating tissue damage or inflammation rather than neuropathic pain.