Choroid Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Choroid and links to relevant pages within the course.
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| Where does most cerebrospinal fluid originate? | View Page |
| Location of CSF Most cerebrospinal fluid originates in the choroid plexus. The choroid plexus is composed of a mass of tiny blood vessels which are located in the third lateral and fourth ventricles.
The remaining CSF, about 30%, is formed in other sites such as the subarachnoid space and the ependymal lining of the ventricles.
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