The fluid filled spaces in the brain are called ventricles. The fluid is called cerebrospinal fluid
No, the brain does not have empty spaces. It is mainly composed of brain tissue, which includes neurons, glial cells, and structures such as ventricles that are filled with cerebrospinal fluid. Any empty spaces within the brain are typically filled with either fluid or tissue.
a stegasauruses brain is as big as a cats brain
You should identify this question yourself using your brain.
the middle
What we see is processed as vision in the occipital lobes of the brain.
A seagull has a surprisingly small brain, given the intelligent survival skills it has. Its brain is roughly the size of a pea.
blood-brain barrier (!)
The four hollow and interconnected spaces within the brain are called ventricles. They are filled with cerebrospinal fluid, which helps cushion the brain, supply nutrients, and remove waste products. The ventricles play a crucial role in maintaining the brain's overall health and function.
An X-ray photograph of the fluid-filled spaces in the brain
ventricles
roughly 25%