Albany Medical College Virtual Anatomy Lab

Neurology Lab 1 - Module 2 - Ventricles of the Brain: Page 2 of 2

Cerebrospinal fluid (CSF) flows through and around the brain. Cerebrospinal fluid is produced by the choroid plexes found in the lateral ventricles of both hemispheres of the brain.

The CSF flows through the Foramen of Monro in each hemisphere, which drains the CSF into the third ventricle. The Aquiduct of Sylvius takes the cerebrospinal fluid to the forth ventricle and subsequently into the sub-arachnoind space that surrounds both the brain and the spinal cord.

The connections from the fourth ventricle to the sub-arachnoid space are called the Foramen of Magendie and Luschka. The arachnoind granulations re-absorb the cerebrospinal fluid back into the blood stream.

CSF Flow
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CSF Flow

What would an obstruction of this flow pattern lead to?

Where are the most likely points of obstruction?