Cerebrospinal Fluid | Neuroanatomy
Like this video?
Sign up now on our website at www.DrNajeebLectures.com to access 800+ Exclusive videos on Basic Medical Sciences & Clinical Medicine. These are premium videos (NOT FROM KZfaq). All these videos come with English subtitles & download options. Sign up now! Get Lifetime Access for a one-time payment of $99 ONLY!
Sign up now on our website at members.drnajeeblectures.com/
---------------------------------------------------------------------------------------------------------------------------
Why sign up for premium membership? Here's why!
Membership Features for premium website members.
1. More than 800+ Medical Lectures.
2. Basic Medical Sciences & Clinical Medicine.
3. Mobile-friendly interface with android and iOS apps.
4. English subtitles and new videos every week.
5. Download option for offline video playback.
6. Fanatic customer support and that's 24/7.
7. Fast video playback option to learn faster.
8. Trusted by over 2M+ students in 190 countries.
---------------------------------------------------------------------------------------------------------------------------
▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
Cerebrospinal fluid (CSF) is a clear, colorless body fluid found within the tissue that surrounds the brain and spinal cord of all vertebrates.
CSF is produced by specialised ependymal cells in the choroid plexus of the ventricles of the brain, and absorbed in the arachnoid granulations. There is about 125 mL of CSF at any one time, and about 500 mL is generated every day. CSF acts as a shock absorber, cushion or buffer, providing basic mechanical and immunological protection to the brain inside the skull. CSF also serves a vital function in the cerebral autoregulation of cerebral blood flow.
CSF occupies the subarachnoid space (between the arachnoid mater and the pia mater) and the ventricular system around and inside the brain and spinal cord. It fills the ventricles of the brain, cisterns, and sulci, as well as the central canal of the spinal cord. There is also a connection from the subarachnoid space to the bony labyrinth of the inner ear via the perilymphatic duct where the perilymph is continuous with the cerebrospinal fluid. The ependymal cells of the choroid plexus have multiple motile cilia on their apical surfaces that beat to move the CSF through the ventricles.
A sample of CSF can be taken from around the spinal cord via lumbar puncture. This can be used to test the intracranial pressure, as well as indicate diseases including infections of the brain or the surrounding meninges.
Although noted by Hippocrates, it was forgotten for centuries, though later was described in the 18th century by Emanuel Swedenborg. In 1914, Harvey Cushing demonstrated that CSF is secreted by the choroid plexus.
---------------------------------------------------------------------------------------------------------------------------
Join this channel to get access to the perks:
Sign up now on our website at members.drnajeeblectures.com/
Follow us on Facebook:- / drnajeeb
Follow us on Instagram:- / drnajeeblectures