Pain and the Somatosensory System - Lecture 6
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Questions and Answers

What does the acronym 'ADME' stand for in pharmacokinetics?

  • Absorption, Demarcation, Modulation, Excitation
  • Absorption, Distribution, Metabolism, Excretion (correct)
  • Activation, Defense, Metabolism, Elimination
  • Administration, Distribution, Mechanism, Elimination
  • Which of the following is NOT a type of seizure?

  • Absence seizure
  • Hypertonic seizure (correct)
  • Generalized tonic-clonic seizure
  • Myoclonic seizure
  • What does the term 'therapeutic index' refer to?

  • The ratio between the minimum effective dose and the minimum toxic dose (correct)
  • The maximum concentration a drug can achieve in the bloodstream
  • The range of doses that produce side effects
  • The value representing a drug's absorption rate
  • What does a black box warning on a drug label signify?

    <p>There are significant risks of serious or even life-threatening adverse effects</p> Signup and view all the answers

    What does the term 'paroxysmal depolarization shift' (PDS) refer to in seizure activity?

    <p>A temporary change in membrane potential leading to hyperexcitability</p> Signup and view all the answers

    What distinguishes chronic pain from acute pain?

    <p>Chronic pain lasts longer than acute pain.</p> Signup and view all the answers

    Which term refers to increased sensitivity to pain, commonly seen in chronic pain sufferers?

    <p>Hyperalgesia</p> Signup and view all the answers

    Which of the following accurately describes the nociceptors?

    <p>They are specialized neurons that detect painful stimuli.</p> Signup and view all the answers

    What effect do opioids primarily have on pain modulation?

    <p>They inhibit pain perception by acting on opioid receptors.</p> Signup and view all the answers

    Which of the following conditions can be associated with neuropathic pain?

    <p>Spontaneous pain</p> Signup and view all the answers

    Which pharmacological agents are known to modulate the TRPV1 channels involved in pain perception?

    <p>Capsaicinoids</p> Signup and view all the answers

    What is one limitation of targeting a single nociceptor mechanism for pain management?

    <p>It can lead to excessive sensitivity in adjacent nerve pathways.</p> Signup and view all the answers

    Which type of pain pathway is primarily concerned with emotional aspects of pain perception?

    <p>Neurons connecting to the insular cortex</p> Signup and view all the answers

    Study Notes

    Lecture 6 (October 21): Key Study Points

    • Understand pain's role within the somatosensory system and the difference between acute and chronic pain.
    • Differentiate neuropathic and inflammatory pain, and recognize relevant conditions (e.g., allodynia, hyperalgesia, spontaneous pain).
    • Identify factors influencing pain perception beyond typical pain pathways.
    • Describe the pain pathway, from primary sensory afferents to the cortex, and define nociceptors.
    • Detail descending pathways and how the rostral ventromedial medulla (RVM) regulates pain.
    • Outline various pharmacological approaches (e.g., opioids, cannabinoids, antidepressants, NMDA antagonists) to modulate pain, including roles of specific ion channels (NaV1.7 and TRPV1).
    • Understand limitations of targeting single nociceptor receptors.
    • Identify examples of anti-inflammatory drugs and their mechanisms of action.
    • For somatosenses/pain, focus on learning objectives 7.15, 7.16, and 7.17.
    • Understand pain pathways linked to sensory and emotional components.
    • Understand opioid-induced analgesia (Figure 7.31). Avoid placebo analgesia and phantom limb pain for now (will be covered later).
    • Focus on the entire learning objective 16.2 related to Seizure Disorders (chapter 16.1).
    • Differentiate various seizure types (convulsive and non-convulsive). Identify examples of seizure causes and related pathways.
    • Understand neuropharmacological aspects, especially excitation, inhibition, and the paroxysmal depolarization shift (PDS).
    • Summarize interictal periods and current treatment approaches.
    • Define ADME (in relation to pharmacokinetics).
    • Describe different drug-administration routes and rationales.
    • Explain Cmax, Cmin, Tmax, T1/2, and F (bioavailability).
    • Understand why F% is important in drug efficacy.
    • Define side effects and their causes, focusing on pharmacovigilance studies.
    • Understand drug labels and black box warnings.
    • Evaluate therapeutic indexes and their importance based on disease factors.

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    Description

    This quiz focuses on key concepts from Lecture 6 regarding the role of pain within the somatosensory system. It covers the differences between acute and chronic pain, as well as neuropathic and inflammatory pain. Additionally, the quiz explores pain pathways, nociceptors, and pharmacological approaches to pain modulation.

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