cerebrospinal

The brain is floating in liquid - the cerebrospinal fluid.

The magnitude of the vasomotion-induced cerebrospinal fluid inflow in patients with Parkinson’s disease was reduced relative to healthy controls.

Instead it was filled with cerebrospinal fluid, which cushions the brain and provides defence against disease.

This creates a hollow tube filled only with cerebrospinal fluid from second lumbar vertebra down to end of spinal column.

> couldn't function with cerebralspinal fluid s/with/without/ (also, though this is just nitpicking, s/cerebralspinal/cerebrospinal/) Cerebrospinal fluid (hereafter referred to as CSF) is actually very interesting.

Technically your brain is using cerebrospinal fluid not water, but the scientist was talking to a reporter, who was writing for the general public.

Reminds me of a recent finding that attention lapses in a sleep-deprived brain correlate with flushing of cerebrospinal fluid (almost a garbage collection pause).

The acid base balance of the cerebrospinal fluid is the primary driver of the respiratory drive, like allude to with your comment on the CO2.

The rest of his skull was filled with cerebrospinal fluid.

-- Fortea (2024) -- Over 95% of people with two copies have amyloid beta in their cerebrospinal fluid.

The glymphatic pathway relies on vasomotion (rhythmic constriction and dilation of blood vessels) to drive cerebrospinal fluid through the interstitial space and clear waste from the brain.

The current study demonstrated that intermittent hypercapnia, exposure to low levels of CO2 in ON-OFF cycles, elicited vasomotion-induced cerebrospinal fluid inflow in both healthy controls and individuals with Parkinson’s disease.

The article indicates it's the actual scan and says the space "was filled with cerebrospinal fluid, which cushions the brain and provides defence against disease."

It's because your brain floats in the cerebrospinal fluid, there's no way to effectively "anchor" your brain from crashing around in your head during concussions and hard hits.

Abstract: "Neurofluids, including cerebrospinal fluid (CSF) and interstitial fluid, circulate through regulated central nervous system pathways to clear cerebral waste and support brain health, with elevated CSF flow hyperdynamicity and regurgitation through the cerebral aqueduct associating with aging and neurodegeneration.

Cerebrospinal fluid in this case and most; it's the general purpose volume-filler of the central nervous system.

Cerebrospinal fluid is (and this is probably somewhat oversimplified) produced from material in the bloodstream in the ventricles in the brain, flows through the system of ventricles and then out of the brain into the subarachnoid space around the brain and spinal cord, and is then reabsorbed into the bloodstream.