Neuroanatomy - Ventricles and CSF
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What secretes CSF ?
Choroid plexus are areas where the lining wall of the ventricle is very thin and has a profusion of capillaries
How does the CSF get from the 4th ventricle to the brain and spinal cord ?
4th ventricle > foramina > subarachnoid space > brain and spinal cord
What collapses in the subarachnoid space to allow venous blood not to flow back into the CSF space. ?
Name the portions of the Diagram ?
Explain the flow of cerebral spinal fluid ?
Choroid plexus > Laterla ventricles > Intreventricular > third ventricle > Cerebral aqueduct of sylvius > From the fourth ventricle, the fluid passes through the Foramen of Magendie (medial) and Foramen of Luschka (lateral) to enter the subarachnoid space >arachnoid villi > Dural spaces > Jugular vein
How much CSF is made a day , how much is typically in the brain ?
720 ml a day
120ml is in the brain
What can TB meningitis cause ?
TB meningitis – block of aqueduct of Sylvius - hydrocephalus
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