Lesson 13 of 13 · about 5 minutes

Wiring and fluid

White matter cables and the ventricles.

In the 3D app, the brain flies to each part as you read, and 2 quick questions at the end help it stick. Here is the whole lesson to read.

1
The great bridge
About 200 million fibers join the two hemispheres through the corpus callosum.
More about the corpus callosum →
2
The cingulum
Inside the cingulate gyrus, the cingulum links the front of the brain to the memory areas.
More about the cingulum →
3
The uncinate
A hook-shaped bundle links the emotional memories of the temporal lobe to the frontal lobe.
More about the uncinate fasciculus →
4
The ventricles
Fluid-filled chambers sit deep inside the brain. The two lateral ventricles are the largest.
More about the lateral ventricles →
5
Making the fluid
The choroid plexus makes about half a liter of cerebrospinal fluid every day.
More about the choroid plexus →
6
A narrow channel
Fluid flows from the third ventricle through the thin cerebral aqueduct to the fourth. If it blocks, the ventricles above it swell.
More about the cerebral aqueduct →