Block 5 Neuro Blood Supply And Diencephalon MCQ's

19 Questions | Total Attempts: 1045

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Block 5 Neuro Blood Supply And Diencephalon MCQ

Questions and Answers
  • 1. 
    Which thalamic nucleus would be primarily responsible for processing input associated with activation of pacinian corpuscles in your left hand?
    • A. 

      Left dorsomedial nucleus of the thalamus

    • B. 

      Left pulvinar nucleus of the thalamus

    • C. 

      Left ventroposteromedial (VPM) nucleus of the thalamus

    • D. 

      Right lateral geniculate nucleus of the thalamus

    • E. 

      Right ventroposterolateral (VPL) nucleus of the thalamus

    • F. 

      Right ventral anterior nucleus of the thalamus

  • 2. 
    A 47-year old female is referred to a local clinic because of polyuria linked to excessive thirst/drinking. She denies any family history of diabetes. A CT (computed tomography) scan reveals an infarcted area in a region of the diencephalon. You suspect a lesion in which structure?
    • A. 

      Posterior nucleus of hypothalamus

    • B. 

      Anterior nucleus of thalamus

    • C. 

      Ventro-postero lateral nucleus of thalamus

    • D. 

      Habenular nucleus of epithalamus

    • E. 

      Arcuate nucleus of thalamus

    • F. 

      Paraventricular nucleus of hypothalamus

  • 3. 
    Your patient had a stroke affecting the thalamus. After an MRI, the neurologist advised you that the "limbic" thalamus had been affected. Which of the following thalamic nuclei has both afferent and efferent limbic connections?
    • A. 

      Anterior nucleus

    • B. 

      Pulvinar

    • C. 

      Ventral posterolateral nucleus

    • D. 

      Ventral lateral nucleus

    • E. 

      Medial geniculate nucleus

  • 4. 
    Your grandmother always drinks her coffee while it is still steaming hot. The temperature perception that she feels on her tongue is relayed directly to the thalamus by which of the following neurons?
    • A. 

      Main (principal/chief) sensory nucleus of V (trigeminal)

    • B. 

      Nucleus cuneatus

    • C. 

      Spinal nucleus of V (trigeminal)

    • D. 

      Trigeminal ganglion

    • E. 

      VPM (Ventral posterolateral nucleus of the thalamus)

  • 5. 
    As a researcher you are doing axonal tracing studies in the thalamus. You decide to inject an anterograde tracer into the VL (ventral lateral) and VA (ventral anterior) nuclei of the thalamus. What is the major output of these nuclei?
    • A. 

      Primary somatosensory cortex (3,1,2)

    • B. 

      Primary motor cortex (4)

    • C. 

      Primary visual cortex (17)

    • D. 

      Cingulate gyrus and other limbic regions

    • E. 

      Primary auditory cortex (41,42)

  • 6. 
    As a principal investigator with a team of scientists, you are determined to create a method by which individuals could elect to surgically alter their hypothalamus to control their weight. Which hypothalamic nucleus would cause starvation if it was lesioned or destroyed?
    • A. 

      Paraventricular nucleus

    • B. 

      Mammillary body

    • C. 

      Ventromedial nucleus

    • D. 

      Lateral nucleus

    • E. 

      Posterior nucleus

  • 7. 
    Your friend in your advanced genetics class is always falling asleep during lecture. At first you thought that she just wasn't sleeping at night or that the lecture had to be extremely boring for her. However! you then notice that she sometimes she falls asleep during group activities as well. Which hypothalamic nucleus may be related to her problem?
    • A. 

      Dorsomedial nucleus

    • B. 

      Paraventricular nucleus

    • C. 

      Anterior nucleus

    • D. 

      Arcuate nucleus

    • E. 

      Ventromedial nucleus

  • 8. 
    Which of the following regions of the hypothalamus contains nuclei important for learning and memory circuits?
    • A. 

      Preoptic Area

    • B. 

      Posterior Area

    • C. 

      Tuberal Region

    • D. 

      Anterior Area

    • E. 

      Lateral Area

  • 9. 
    The thalamus is involved in the sensory relay of many modalities to the cortex. Which sensory modality does not utilize the thalamus in any significant manner?
    • A. 

      Pain

    • B. 

      Olfaction

    • C. 

      Light Touch

    • D. 

      Proprioception

    • E. 

      Vibratory Sense

  • 10. 
    Which of the following grouping of nuclei of the hypothalamus all regulate feeding behaviors?
    • A. 

      Dorsomedial nucleus, lateral nucleus, ventromedial nucleus

    • B. 

      Dorsomedial nucleus, lateral nucleus, anterior nucleus

    • C. 

      Arcuate nucleus! lateral nucleus, paraventricular nucleus

    • D. 

      Arcuate nucleus, suprachiasmatic nucleus, posterior nucleus

    • E. 

      Ventromedial nucleus, posterior nucleus, paraventricular nucleus

  • 11. 
    A 55-year old male was admitted to the hospital after suffering from a stroke. He later succumbed. The diagram below represents a cross section from his lower pons obtained at autopsy. The dark shaded area presents a lesion resulting from an embolus in which artery?
    • A. 

      Anterior cerebral artery

    • B. 

      Middle cerebral artery

    • C. 

      Posterior inferior cerebellar artery

    • D. 

      Anterior inferior cerebellar artery

    • E. 

      Paramedian branch of basilar artery

  • 12. 
    An infarct involving the hypothalamus would most likely result from occlusion of the?
    • A. 

      Anterior spinal artery

    • B. 

      Vertebral artery

    • C. 

      Anterior cerebral artery

    • D. 

      Perforating arteries associated with the Circle of Willis

    • E. 

      Posterior cerebral artery

  • 13. 
    A neurological examination of a 51-year old woman indicated that she had a loss of pain and temperature sense on the right side of her body, a decreased sense of taste on the left side and hoarseness of voice when speaking. She also complained of dizziness and nausea. Which of the following arteries may be occluded in this patient?
    • A. 

      Posterior Cerebral Artery

    • B. 

      Anterior Inferior Cerebellar Artery (AlCA)

    • C. 

      Posterior Inferior Cerebellar Artery (PICA)

    • D. 

      Anterior Spinal Artery

    • E. 

      Anterior Cerebral Artery

  • 14. 
    As a  physician you are viewing an angiogram, which illustrates the occlusion of the Anterior Cerebral Artery supplying the right hemisphere. Because of this information, you know that the patient will have a deficit in which of the following?
    • A. 

      Motor and sensory function in the right lower limb

    • B. 

      Motor and sensory function in the left lower limb

    • C. 

      Motor and sensory function in the right upper limb

    • D. 

      Motor and sensory function in the left upper limb

    • E. 

      Motor and sensory function in the upper and lower limbs

  • 15. 
    An occlusion of which artery would result in a loss of voluntary motor function and an oculomotor nerve palsy?
    • A. 

      Anterior cerebral artery

    • B. 

      Posterior inferior cerebellar artery (PICA)

    • C. 

      Posterior communicating artery

    • D. 

      Middle cerebral artery

    • E. 

      Posterior cerebral artery

  • 16. 
    A patient has a severe stroke in the artery marked in the below angiogram. As the physician you know (i) the name of the artery and (ii) the region of the body which will present with motor and somatosensory deficits.
    • A. 

      Anterior Cerebral Artery -Deficits to left lower limb

    • B. 

      Anterior Cerebral Artery -Deficits to right lower limb

    • C. 

      Middle Cerebral Artery -Deficits to right upper limb

    • D. 

      Middle Cerebral Artery -Deficits to left upper limb

  • 17. 
    Which of the following is an arterial branch of the vertebral system supplying the brain?
    • A. 

      Anterior cerebral artery

    • B. 

      Posterior inferior cerebellar artery (PICA)

    • C. 

      Posterior communicating artery

    • D. 

      Middle cerebral artery

    • E. 

      Anterior communicating artery

  • 18. 
    A 49-year old man keeps complaining of a loss of taste, a loss of pain and temperature on the left side below his neck, hoarseness of voice and he is also exhibiting a slight ataxia. You believe that which of the following has occurred?
    • A. 

      A small stroke in the right posterior inferior cerebellar artery (PICA)

    • B. 

      A small stroke in the left posterior inferior cerebellar artery (PICA)

    • C. 

      A small stroke in the right superior cerebellar artery

    • D. 

      A small stroke in the left superior cerebellar artery

    • E. 

      A small stroke in the right posterior cerebral artery

    • F. 

      A small stroke in the left posterior cerebraI artery

  • 19. 
    You are caring for a patient who has suffered a stroke and has issues comprehending any spoken language. Branches of what artery do you know have been compromised?
    • A. 

      Posterior cerebral artery

    • B. 

      Middle cerebral artery

    • C. 

      Anterior cerebral artery

    • D. 

      Striate arteries

    • E. 

      Anterior choroidal artery

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