Anatomy

Cerebral Ventricle

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Cerebral Ventricle, Ventricular Anatomy, Third Ventricle, Fourth Ventricle, Lateral Ventricle, Cerebral Aqueduct, Cerebral Choroid Plexus, Aqueduct of Sylvius, Middle Foramen of Magendie, Lateral Foramena of Luschka, Cerebrospinal Flow

  • Definitions
  1. Choroid Plexus
    1. Produces cerebrospinal fluid in the walls of the Cerebral Ventricles
  • Pathophysiology
  1. Hydrocephalus
    1. Occurs when CSF flow is obstructed, leading to expansion of the Lateral Ventricles
  • Anatomy
  • Cerebrospinal spinal fluid pathway
  1. Lateral Ventricles (left and right)
    1. Most superior ventricle
    2. Cerebrospinal fluid originates here (and in the third and Fourth Ventricles)
    3. Drains via the interventricular foramina (foramina of monro) into the Third Ventricle
  2. Third Ventricle (midline)
    1. Drains via the Aqueduct of Sylvius into the Fourth Ventricle
  3. Fourth Ventricle (midline, posterio fossa)
    1. Drains out of the intracranial cavity into the subarachnoid space via three openings
    2. Middle Foramen of Magendie (midline) openings
    3. Lateral Foramena of Luschka (right and left) openings
  4. Subarachnoid space
    1. CSF flows into the subarachnoid space
    2. CSF drains into the Superior Sagittal Sinus via arachnoid villi or granules (small holes in the sinus wall)
  5. Cisterns
    1. Wider pockets of subarachnoid space and cerebrospinal fluid
  • Anatomy
  • Ventricles
  1. neuroThirdVentricleGrayBB723.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  2. neuroVentriclesGrayBB734.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  3. neuroVentriclesGrayBB735.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  4. neuroVentriclesGrayBB736.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  5. neuroLateralVentriclePosteriorCornuGrayBB738.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  6. neuroLateralVentricleInferiorHornGrayBB749.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  7. neuroThirdVentricleGrayBB750.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  • References
  1. Gilman (1989) Manter and Gatz Essentials of Neuroanatomy and Neurophysiology, Davis, p. 232-7
  2. Goldberg (2014) Clinical Neuroanatomy, Medmaster, p. 6-15
  3. Netter (1997) Atlas Human Anatomy, ICON Learning, p. 102-3