Neuropath 1 Quiz
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Questions and Answers

What is the most likely consequence of cerebral edema?

  • Flattening of gyri and narrowing of sulci (correct)
  • Enlargement of the head circumference
  • Compression of the lateral ventricles
  • Expansion of ventricular cavities
  • In non-communicating hydrocephalus, which part of the ventricular system is likely to be enlarged?

  • Entire ventricular system
  • Portion of ventricular system (correct)
  • Fourth ventricle
  • Cerebral aqueduct
  • What is the most common cause of hydrocephalus?

  • Overproduction of CSF
  • Impaired flow and resorption of CSF (correct)
  • Tumors of the choroid plexus
  • Enlargement of the ventricles
  • What are the symptoms of raised intracranial pressure/hydrocephalus?

    <p>Slowing of mental capacity and headaches, especially more severe in the morning</p> Signup and view all the answers

    What is the key pathway for pain in migraine?

    <p>Trigeminovascular input from the meningeal vessels to the trigeminal ganglion</p> Signup and view all the answers

    What is the role of CGRP (calcitonin-gene-related peptide) in migraine?

    <p>It is a vasodilator and increases pain</p> Signup and view all the answers

    What is the best accepted theory for the pathophysiology of 'other' neurologic findings in migraine?

    <p>Neurovascular theory involving primary neural dysfunction and spreading depression wave</p> Signup and view all the answers

    What are the early signs/symptoms of prodrome in migraine?

    <p>Sensitivity to light, sound, and odors; lethargy</p> Signup and view all the answers

    What are the diagnostic criteria for migraine according to the text?

    <p>Repeated attacks of headache lasting 4 - 72 hours</p> Signup and view all the answers

    How does increased intracellular calcium lead to increased nitric oxide production?

    <p>Activation of nitric oxide synthase by calcium-calmodulin complex</p> Signup and view all the answers

    In the subacute phase of ischemic insult, what is the characteristic cellular response?

    <p>Reactive astrocytes and influx of leukocytes across BBB</p> Signup and view all the answers

    What is the main feature of liquefactive necrosis?

    <p>Digestion of dead cells and transformation of tissue into a liquid viscous mass</p> Signup and view all the answers

    What is the consequence of hypoxic death of cells within the central nervous system?

    <p>Manifestation as liquefactive necrosis</p> Signup and view all the answers

    What occurs during the resolution phase of ischemic insult in the central nervous system?

    <p>Development of astrocytic 'scar' and removal of liquefied mass</p> Signup and view all the answers

    What are the typical signs and symptoms of idiopathic intracranial hypertension?

    <p>Headache, diplopia, tinnitus, and visual field defects</p> Signup and view all the answers

    What is the predominant demographic affected by idiopathic intracranial hypertension?

    <p>Obese women of childbearing age</p> Signup and view all the answers

    What is the suggested treatment for idiopathic intracranial hypertension?

    <p>Weight loss</p> Signup and view all the answers

    What is the characteristic presentation of acute neuronal injury?

    <p>Red neurons with increased eosinophilia, pyknosis, and cell shrinkage</p> Signup and view all the answers

    Which cells exhibit minimal changes when tissue is damaged in the central nervous system?

    <p>Oligodendrocytes and ependymal cells</p> Signup and view all the answers

    Which type of headache is characterized by excruciating pain and autonomic features like conjunctival injection and tearing?

    <p>Cluster headache</p> Signup and view all the answers

    What is the typical duration of tension-type headaches?

    <p>30 minutes to 7 days</p> Signup and view all the answers

    What is the potential link of Secondary headaches to pathogenesis?

    <p>Subarachnoid hemorrhage</p> Signup and view all the answers

    What are the characteristics of secondary headaches?

    <p>Pathogenesis related to rises in inter-cranial pressure</p> Signup and view all the answers

    Which type of cerebral edema is associated with ischemia?

    <p>Cytotoxic cerebral edema</p> Signup and view all the answers

    Which type of headache is characterized by unilateral, severe, and stabbing pain in the orbital, supraorbital, and/or temporal region?

    <p>Cluster headache</p> Signup and view all the answers

    Which of the following structures can sense pain and cause a headache if irritated?

    <p>Intercranial vessels</p> Signup and view all the answers

    Which type of headache is the disorder itself, rather than being caused by an exogenous disorder?

    <p>Migraine headache</p> Signup and view all the answers

    What are the common features of tension-type headaches?

    <p>Bilateral, pressing or tightening pain</p> Signup and view all the answers

    What are the typical characteristics of migraine headaches?

    <p>Unilateral, severe pain with autonomic features</p> Signup and view all the answers

    What are some common causes of secondary headaches according to the text?

    <p>Caused by an exogenous disorder</p> Signup and view all the answers

    Overproduction CSF is a common cause of cerebral edema

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

    Transtentorial herniation is associated with....

    <p>3rd cranial nerve palsy</p> Signup and view all the answers

    Subfalcine herniation can lead to the compression of....

    <p>Anterior cerebral aretry</p> Signup and view all the answers

    Hemorrhagic lesions of midbrain and pons are characteristic of....

    <p>Transtentorial herniation</p> Signup and view all the answers

    What type of herniation could be the most lethal?

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

    Which of the following excitatory molecules are released during ischemia?

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

    Which phase of ischemia do red neurons start to develop?

    <p>Later insult (hours - a day)</p> Signup and view all the answers

    Following resolution, necrotic area could be filled with neurons and new blood vessels

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

    Study Notes

    Headache Disorders: Types, Symptoms, and Pathophysiology

    • Tension-type headaches exhibit pressing or tightening quality, are bilateral, and have mild to moderate intensity, lasting 30 minutes to 7 days.
    • Cluster headaches, a type of trigeminal autonomic cephalalgias (TACs), are excruciating, with autonomic features such as conjunctival injection and tearing.
    • Pathogenesis of TACs is not fully understood, but it may be linked to hypothalamic/circadian circuits and vasodilation.
    • Cluster headaches and TACs, including paroxysmal hemicrania and SUNCT, have distinct characteristics in terms of gender prevalence, type, severity, site, frequency, and duration of attack.
    • Cluster headaches tend to occur frequently for a period, followed by a headache-free interval, and patients may exhibit restlessness or agitation during attacks.
    • Secondary headaches are associated with more clearly defined underlying causes, such as elevations in intracranial pressure or irritation of the meninges.
    • Secondary headaches are linked to pathologies like meningitis, encephalitis, subarachnoid hemorrhage, and intracranial mass, which can cause pain due to edema and hydrocephalus.
    • Criteria for low-risk headaches include age younger than 30, typical features of primary headache, no abnormal neurological findings, and no concerning change in the usual headache pattern.
    • Meningitis, encephalitis, subarachnoid hemorrhage, intraparenchymal hemorrhage, intracranial mass, and general neuropathology can cause secondary headaches.
    • Cerebral edema, a type of elevated intracranial pressure, can be vasogenic or cytotoxic, leading to fluid shifts and increased intracellular fluid.
    • Secondary headaches may have a poor prognosis, and these pathologies need to be fully evaluated.
    • No clear pathophysiology has been established for tension-type headaches, and much work is needed to understand the dysregulation of pain sensation in the central nervous system.

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    Description

    Test your knowledge of headache disorders with this quiz covering types, symptoms, and pathophysiology. From tension-type headaches to cluster headaches and secondary headaches, this quiz will challenge your understanding of the characteristics, causes, and risk factors associated with different headache disorders.

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