Cerebellum and Cerebral Blood Supply
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Questions and Answers

Which of the following pairs of nuclei is classified as paleocerebellar?

  • Nucleus globosus and nucleus dentatus
  • Nucleus globosus and nucleus emboliformis (correct)
  • Nucleus dentatus
  • Nucleus fistigii

    • Which artery supplies the orbit?

  • Middle cerebral artery
  • Ophthalmic artery (correct)
  • Anterior cerebral artery
  • Posterior communicating artery

    • What is the name of the artery that connects the anterior cerebral arteries of the two sides?

  • Anterior choroidal artery
  • Anterior communicating artery (correct)
  • Posterior communicating artery
  • Middle cerebral artery

    • Which part of the corpus callosum does the anterior cerebral artery wind around?

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

    What is the name of the branch of the anterior cerebral artery that supplies the medial surface of the brain?

    <p>Cortical branch</p> Signup and view all the answers

    Which of the following arteries is NOT a branch of the internal carotid artery?

    <p>Vertebral artery</p> Signup and view all the answers

    What is the function of the anterior choroidal artery?

    <p>Takes part in supplying the brain</p> Signup and view all the answers

    Which of the following is a central branch of the anterior cerebral artery?

    <p>Artery of Huebner</p> Signup and view all the answers

    Which cerebral artery supplies the occipital lobe?

    <p>Posterior cerebral artery</p> Signup and view all the answers

    What is the main function of the central branches of the cerebral arteries?

    <p>Supplying structures within the cerebral hemisphere</p> Signup and view all the answers

    Which part of the brain is supplied by the short medial branches of the posterior cerebral artery?

    <p>All of the above</p> Signup and view all the answers

    What is the name of the branch that supplies the choroid plexus of the lateral and 3rd ventricles?

    <p>Posterior choroidal artery</p> Signup and view all the answers

    Which part of the cerebral hemisphere is supplied by the middle cerebral artery?

    <p>Superolateral surface</p> Signup and view all the answers

    What is the name of the sulcus where the posterior cerebral artery divides into its two terminal branches?

    <p>Calcarine sulcus</p> Signup and view all the answers

    Which cerebral artery supplies the inferior temporal gyrus?

    <p>Posterior cerebral artery</p> Signup and view all the answers

    What is the name of the area that is supplied by the anterior cerebral artery and is located along the superomedial border of the cerebral hemisphere?

    <p>Strip of 2 cm wide</p> Signup and view all the answers

    The vertebral artery ascends in the subarachnoid space in relation to which part of the medulla oblongata?

    <p>Ventral surface</p> Signup and view all the answers

    Which of the following arteries is NOT a branch of the vertebral artery?

    <p>Posterior cerebral artery</p> Signup and view all the answers

    The posterior inferior cerebellar artery supplies which part of the cerebellum?

    <p>Inferior surface (posterior part)</p> Signup and view all the answers

    The basilar artery is formed by the union of which two arteries?

    <p>Right and left vertebral arteries</p> Signup and view all the answers

    Which branch of the basilar artery supplies the inner ear?

    <p>Labyrinthine artery</p> Signup and view all the answers

    The posterior cerebral artery curves around which part of the brain?

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

    Which of the following arteries is NOT a branch of the basilar artery?

    <p>Posterior inferior cerebellar artery</p> Signup and view all the answers

    The posterior cerebral artery passes below which part of the brain?

    <p>Splenium of corpus callosum</p> Signup and view all the answers

    Study Notes

    Cerebellar Nuclei

    • There are four pairs of nuclei in the cerebellum:
      • Nucleus dentatus (neocerebellar)
      • Nucleus globosus and nucleus emboliformis (paleocerebellar)
      • Nucleus fastigii (archicerebellar)

    Arterial Supply of the Cerebrum

    • The brain is supplied by the internal carotid and vertebral arteries and their branches.

    Internal Carotid Artery

    • Pierces the dura mater and gives off:
      • Three large branches: ophthalmic artery, anterior cerebral artery, and middle cerebral artery
      • Two smaller branches: posterior communicating artery and anterior choroidal artery

    Anterior Cerebral Artery

    • Arises from the internal carotid artery below the anterior perforated substance
    • Runs forwards and medially to reach the longitudinal fissure separating the two cerebral hemispheres
    • Divides into cortical and central branches:
      • Cortical branches: supply the medial surface of the brain from the frontal pole to the parieto-occipital sulcus
      • Central branches: supply the basal ganglia, internal capsule, and thalamus

    Vertebral Artery and its Branches

    • Formed by the union of the right and left vertebral arteries at the lower border of the pons
    • Branches:
      • Anterior spinal artery
      • Posterior inferior cerebellar artery (supplies the inferior surface of the cerebellum)
      • Medullary branches (supply the medulla oblongata)

    Basilar Artery and its Branches

    • Formed by the union of the right and left vertebral arteries at the lower border of the pons
    • Branches:
      • Superior cerebellar artery (supplies the superior surface of the cerebellum)
      • Pontine branches (supply the pons and middle cerebellar peduncle)
      • Labyrinthine (internal auditory) artery (supplies the inner ear)
      • Anterior inferior cerebellar artery (supplies the inferior surface of the cerebellum)
      • Posterior cerebral arteries (supply the occipital lobe)

    Posterior Cerebral Artery

    • Curves backward and laterally around the midbrain
    • Branches:
      • Cortical branches (supply the occipital lobe and inferior temporal gyrus)
      • Central branches (supply the posterior perforated substance, cerebral peduncles, and thalamus)

    Blood Supply of the Cerebral Hemisphere

    • The anterior, middle, and posterior cerebral arteries give rise to two sets of branches: cortical and central
    • Cortical branches supply the cerebral cortex
    • Central branches supply structures within the cerebral hemisphere

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    Description

    This quiz covers the nuclei of the cerebellum, including the nucleus dentatus, nucleus globosus, nucleus emboliformis, and nucleus fastigii, as well as the blood supply of the brain, including the internal carotid and vertebral arteries.

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