Layers of the Cerebrum

Conscious perception of sensory inputs; integration; initiation of motor activities.

cerebral cortex, gray matter

Relay information throughout brain.

white matter tracts

Commissural fibers relay information between left and right cerebral hemispheres.

corpus callosum

Association fibers relay information within one hemisphere.

fornix

Subconscious control of muscles to coordinate movement e.g. to relax opposing muscles or stimulate muscle to stabilize a joint.

basal nuclei: caudate nucleus

Filters and relays sensory information to cerebrum.

thalamus

Subconscious control of muscles to coordinate movement.

basal nuclei: lentiform nucleus (putamen)