Anatomy of the 4th Ventricle

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Questions and Answers

Which part of the 4th ventricle's roof is invaginated into the cavity of the ventricle by the choroid plexus?

  • The lower part
  • The upper part
  • The superior medullary velum (correct)
  • The medial borders

What connects the 4th ventricle to the subarachnoid space?

  • The median aperture (correct)
  • The ependyma
  • The inferior medullary velum
  • The pia mater

What covers the superior medullary velum in the upper part of the 4th ventricle's roof?

  • The ependyma
  • The pia mater
  • The vermies of cerebellum (correct)
  • The inferior medullary velum

What is pierced by the wide median aperture in the roof of the 4th ventricle?

<p>The ependyma (B)</p> Signup and view all the answers

Which ventricle does the fourth ventricle communicate with through the aqueduct of Sylvius?

<p>Third ventricle (B)</p> Signup and view all the answers

What structure does each lateral angle of the fourth ventricle form?

<p>Lateral recess (C)</p> Signup and view all the answers

What is the opening in the subarachnoid space called, through which each lateral recess of the fourth ventricle opens?

<p>Foramen of Luschka (A)</p> Signup and view all the answers

What supplies the T-shaped fourth ventricle with blood?

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

What is the shape of the fourth ventricle?

<p>Triangular (C)</p> Signup and view all the answers

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