Corpus Callosum · Structure
Body
The long central span.
The body is the broad middle arch of the corpus callosum, carrying fibers between the motor and sensory strips of both hemispheres.
What it does
- Transferring touch and body-position signals
- Coordinating two-handed movement
- Timing left–right rhythm
In the real world
Playing an instrument
Pianists who trained young tend to have a larger callosal body — practice literally widens the bridge between the hands.