Neuroanatomy: The Cerebrospinal Fluid CSF

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The cerebrospinal fluid or CSF is the liquid that bathes the central nervous system (the brain and the spinal cord).

The CSF ensures:
- The protection of the central nervous system against mechanical shocks and vibrations.
- it plays an important role in the regulation of intracranial pressure.
- It participates in the cerebral metabolic processes by regulating the exchange of substances. and, provides many other functions as well.

The CSF circulates in two different compartments:
- The first is the inner brain ependymal cavities or ventricles,
- the second is the compartment surrounding the central nervous system, it corresponds to the sub-arachnoid space.

The CSF is secreted by the choroid plexus: clusters of capillary blood vessels located in the ventricular system.

The ventricular system consists of four ventricles connected by many channels.

It is connected to the central canal of the spinal cord.

There are two lateral ventricles, occupying the center of the cerebral hemispheres. Both are connected to the third ventricle at the center of the diencephalon by the foramina of Monro.

The third ventricle is connected to the fourth ventricle in the brainstem by the aqueduct of Sylvius.

The CSF will leave the fourth ventricle through the foramen of Magendie to fill the sub-arachnoid space between the pia mater and the arachnoid.

The CSF is then absorbed at the top of the skull by the arachnoid granulations of Pakioni.

[laneg.]

I feel like someday this model will become an inspiration for a new legendary Pokemon.

[hbhossam]

what can I say, that is really amazing, This is the best ever illustration of anatomy, thank you so much.

[ggonsg]

Thank you, thank you, thank you for helping me have a better understanding of Cerebrospinal Fluid. Much appreciated!!!!

[festoamudavi]

Now this the summation I have been waiting.

[virgiepanda]

Thank you for the video, it is very helpful to understand the flow of CSF and it is beautifully made.

[staralazaro]

All your videos are awesome! Thank you very much  ! Good to have English version  of your whole anatomy work....!

[pika__tchou]

Waw ..big thank you from an Algerian sister ..this is beyond great !!

[zooka]

Thanks, from a TBI patient from Egypt.

[gabrielgandarilla]

Thank you. I appreciate your videos, easy to comprehend :-)

[PauloRLustosa]

Excelente vídeo. Muito obrigado. Parabéns.

[lakshmi-jnhk]

Excellent video.. it made concept clear

[salam]

thank you so much for the illustration ^-^

[BlaackAnchor]

You didnt mention the foramen of Luschka, in the 4th ventricle, that also drains CSF....

[safazenbagh]

Trust me it's damm useful... especially day before exams

[ricardsiagian]

OK. I have question, Does subarachnoid also goes around SCN? If it does, Does CSF have a direct physical contact with VLPO or does it blocked by BBB?

[yezzira]

This is why ancients drew the pineal gland all over the walls. Because CSF flows thru it, triggering DMT

[tdn]

Zeke Yeager's CSF is kinda special

[ninjabird]

Is the CSF in the spinal cord central canal is the same as choroid plexus one or it differs 🧐

[medicoholics]

Very Osm video sir Everything is clear Thank you so much for this 😌☺️ Keep it up & I request u to publish more videos related to human body Once again Thank you so much ❤️✨

[whitegraymatters]

Nice video, could you tell me where you got the music from?