quiz week 6

What is the role of the Lateral Pain System in pain processing?

• It inhibits pain signals.

• It localizes pain to specific areas in the brain's homunculus.

• It processes non-painful stimuli.

• It assigns emotional meaning to pain.

Nociceptors are specialized for detecting:

• Potentially harmful stimuli, leading to pain perception.

• Changes in light and sound.

• Non-painful stimuli.

• Changes in body position.

What is a characteristic feature of C fibers?

• Fast-conducting, large-diameter myelinated fibers.

• Unmyelinated fibers that transmit slow, burning pain.

• Thinly myelinated fibers that detect sharp pain.

• Fibers that monitor muscle stretch and tension.

The Periaqueductal Gray (PAG) in the brainstem is responsible for:

• Monitoring muscle tension.

• Initiating action potentials in nociceptors.

• Modulating pain signals during acute stress.

• Sensory signal transmission to the brain.

Central sensitization is most closely associated with:

• Inflammatory mediators and tissue damage

• Enhanced pain perception due to changes in the central nervous system.

• Immune response

• Increased sensitivty of ion channels

A patient reports back pain but no visible injury. Using the biopsychosocial model, how might you explain this pain?

• The pain is purely psychological.

• The pain could be influenced by emotional stress, physical posture, and social factors.

• The pain is not real because no tissue damage is observed.

• The patient needs further imaging/testing.

How would you apply the Pain Neuromatrix Model to a patient experiencing chronic pain without tissue damage?

• Focus on identifying hidden tissue damage.

• Consider the role of brain networks, including emotions, memories, and beliefs in the patient's pain experience.

• Treat the pain solely with medication.

• Ignore the patient's emotional and cognitive state.

A patient with fibromyalgia reports widespread pain and fatigue. This condition is best explained by:

• Neuropathic pain mechanisms.

• Nociceptive pain mechanisms.

• Nociplastic pain mechanisms.

• Acute pain mechanisms.

A patient experiences pain in a large area surrounding a minor injury. Which type of hyperalgesia does this most likely represent?

• Primary hyperalgesia.

• Secondary hyperalgesia.

• Peripheral neurophaty

• Peripheral hyperalgesia.

A patient recovering from an injury reports that engaging in enjoyable activities reduces their pain. This illustrates the concept of:

• Bottom-up processing.

• Central sensitization.

• Top-down modulation.

• Peripheral sensitization.