Question

3 why cant a split - brain patient send information between their right and left brain hemispheres?
a severed right brain
a severed brain stem
a severed left brain
a severed corpus callosum

Explanation:

The corpus callosum is the thick band of nerve fibers that directly connects the right and left brain hemispheres, enabling communication between them. Split-brain patients have this structure severed (typically to treat severe epilepsy), which blocks information transfer between the two hemispheres. The other options are incorrect: the brain stem controls basic life functions, and severing a single hemisphere does not prevent inter-hemisphere communication.

Answer:

a severed corpus callosum