Central Nervous System Blood Supply Quiz
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Questions and Answers

Which arteries supply blood to intracranial structures?

  • Internal carotid and subclavian arteries
  • Common carotid and subclavian arteries
  • External carotid and vertebral arteries
  • Internal carotid and vertebral arteries (correct)

    • Where do the vertebral arteries enter the cranium?

  • Through the brachiocephalic trunk
  • Through the carotid canal
  • Through the foramen magnum alongside the spinal cord (correct)
  • Through the foramina transversaria in the neck

    • What is the function of the Circle of Willis?

  • Determining blood flow into each artery based on relative resistance
  • Changing vascular caliber in response to changes in resistance
  • Receiving arterial blood from multiple sources (correct)
  • Supplying blood to the intracranial structures

    • Which arteries anastomose at the base of the brain?

    <p>Anterior cerebral, internal carotid, posterior cerebral, and vertebral arteries</p> Signup and view all the answers

    Which vascular territory supplies the medial frontal surface of the cerebral hemisphere?

    <p>Anterior cerebral artery (ACA)</p> Signup and view all the answers

    Which artery supplies the midbrain?

    <p>Posterior cerebral arteries (PCAs)</p> Signup and view all the answers

    Which type of stroke might lead to difficulty with speech and swallowing, strabismus, diplopia, enlarged pupil, and ptosis?

    <p>Basilar artery (BA)</p> Signup and view all the answers

    Which vessel forms the single midline anterior spinal artery located in the ventral median fissure?

    <p>Branches of the vertebral arteries</p> Signup and view all the answers

    What is the 2nd most common cause of subarachnoid hemorrhage?

    <p>Ruptured aneurysm</p> Signup and view all the answers

    Which type of hemorrhage involves blood between the dura and arachnoid?

    <p>Subdural hematoma</p> Signup and view all the answers

    What may a cerebral embolism within the skull lead to?

    <p>Infarction, ischemia, necrosis</p> Signup and view all the answers

    Which artery supplies the cerebellum?

    <p>Basilar artery (BA)</p> Signup and view all the answers

    Which vessel supplies the dorsal white columns and the dorsal grey horns of the spinal cord?

    <p>Posterior spinal arteries</p> Signup and view all the answers

    Which vessels form radicular arteries that supply the spinal nerve roots?

    <p>Branches of the vertebral arteries</p> Signup and view all the answers

    Which vessel supplies the pons?

    <p>Basilar artery (BA)</p> Signup and view all the answers

    Which type of stroke might result in paralysis of the contralateral leg?

    <p>Anterior cerebral artery (ACA)</p> Signup and view all the answers

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