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2-Minute Neuroscience Hydrocephalus Video Lecture - A-Z Guide to Neuroscience
Text Transcript from Video
Welcome to 2 minute neuroscience, where I
explain neuroscience topics in 2 minutes or
less.
In this installment I will discuss hydrocephalus.
Hydrocephalus is a condition that involves
the build-up of cerebrospinal fluid, or CSF,
a fluid that is produced in the cavities of
the brain known as the ventricles.
CSF flows through and around the brain and
spinal cord and is eventually absorbed into
the bloodstream.
It serves a number of functions including
acting as a cushion, delivering nutrients,
and removing harmful substances.
Hydrocephalus can occur due to excess production
of CSF, impaired reabsorption of CSF into
the bloodstream, or a blockage in the ventricular
system that causes CSF to accumulate.
Hydrocephalus is mainly classified as either
communicating or non-communicating.
Communicating hydrocephalus does not involve
a blockage in the ventricular system.
Non-communicating hydrocephalus involves a
blockage, and is the most common cause of
hydrocephalus.
Hydrocephalus can be present at birth or it
can be acquired later in life.
When CSF accumulates in the ventricles, this
causes the brain to become enlarged.
The increased brain size can lead to increased
pressure in the skull, which can lead to the
compression of the brain and a variety of
symptoms, some of which may be life threatening.
When hydrocephalus occurs in infants, their
skull is more capable of expanding, so their
heads often become enlarged but there may
be more time before the onset of other symptoms.
In adults, however, the skull does not generally
expand, and symptoms may appear more quickly.
Treatment for hydrocephalus involves an attempt
to drain the excess CSF, and often this involves
using a cerebral shunt.
A cerebral shunt is a plastic tube connected
to a catheter.
One end of the catheter is placed at the site
of increased pressure in the ventricles and
the other is often placed in the lining of
the abdominal cavity.
CSF is diverted to the abdominal cavity, where
it can safely drain.
explain neuroscience topics in 2 minutes or
less.
In this installment I will discuss hydrocephalus.
Hydrocephalus is a condition that involves
the build-up of cerebrospinal fluid, or CSF,
a fluid that is produced in the cavities of
the brain known as the ventricles.
CSF flows through and around the brain and
spinal cord and is eventually absorbed into
the bloodstream.
It serves a number of functions including
acting as a cushion, delivering nutrients,
and removing harmful substances.
Hydrocephalus can occur due to excess production
of CSF, impaired reabsorption of CSF into
the bloodstream, or a blockage in the ventricular
system that causes CSF to accumulate.
Hydrocephalus is mainly classified as either
communicating or non-communicating.
Communicating hydrocephalus does not involve
a blockage in the ventricular system.
Non-communicating hydrocephalus involves a
blockage, and is the most common cause of
hydrocephalus.
Hydrocephalus can be present at birth or it
can be acquired later in life.
When CSF accumulates in the ventricles, this
causes the brain to become enlarged.
The increased brain size can lead to increased
pressure in the skull, which can lead to the
compression of the brain and a variety of
symptoms, some of which may be life threatening.
When hydrocephalus occurs in infants, their
skull is more capable of expanding, so their
heads often become enlarged but there may
be more time before the onset of other symptoms.
In adults, however, the skull does not generally
expand, and symptoms may appear more quickly.
Treatment for hydrocephalus involves an attempt
to drain the excess CSF, and often this involves
using a cerebral shunt.
A cerebral shunt is a plastic tube connected
to a catheter.
One end of the catheter is placed at the site
of increased pressure in the ventricles and
the other is often placed in the lining of
the abdominal cavity.
CSF is diverted to the abdominal cavity, where
it can safely drain.
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Apr 21, 2026 Last updated
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