Choroid plexus (Plexus Choroideus) - Human Anatomy | Kenhub

This video explores the neuroanatomy of the choroid plexus (plexus choroideus), where the CSF production (cerebrospinal fluid) happens. Take our brain ventricles quiz at https://khub.me/xlreh

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The innermost layer of the meninges, the pia mater, forms vascularized invaginations in some parts of the ventricles. They contain specialized cells responsible for the production of cerebrospinal fluid (CSF). This cell plexus is called the choroid plexus.

The ventricular system consists of two lateral ventricles, a third ventricle, the cerebral aqueduct and a fourth ventricle. The cerebrospinal fluid circulates through the ventricular system: CSF produced in the lateral ventricles travels to the third ventricle, while CSF produced in the third ventricle travels to the fourth ventricle. A combination of CSF produced by the lateral, third and fourth ventricles flow out to the subarachnoid spaces in order to protect the entire central nervous system.

In this video tutorial we will take a look at the structure producing this important fluid: the choroid plexus.

- 0:20 topography
- 1:11 components of the choroid plexus
- 2:10 choroid plexus function
- 2:47 CSF circulation
- 3:41 functions of the CSF

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