callosum
Hemispheric white matter
Callosum appears in English almost exclusively in the phrase corpus callosum, the band of nerve fibers connecting the left and right hemispheres of the brain.
The Latin means "tough body," describing its dense, fibrous texture.
Patients with a severed corpus callosum show fascinating split-brain effects.
Seat of cognition
- hemisphereHalf of a ball
- commissureAnatomical meeting point
- white matterPale neural fiber tissue
- interhemisphericBetween two half-spheres
midline · rostrum · body · cerebral · neural · axon · connectivity · sulcus
Localization to one side
- communicationExchanging ideas or information
- integrationCombining into a whole
- split-brainSevered hemisphere connection
- SperryBoat shoe manufacturer
severed · epilepsy · disconnection · bilateral · coordination · sensory · motor · cognitive
Congenital organ absence
- hypoplasiaIncomplete organ formation
- lesionArea of pathological change
- atrophyWasting from disuse
- multiple sclerosisAutoimmune demyelinating neurological disease
demyelination · tumor · infarct · trauma · abnormality · malformation · thinning · damage
brain
Seat of cognition
- hemisphereHalf of a ball
- commissureAnatomical meeting point
- white matterPale neural fiber tissue
interhemispheric · midline · rostrum · body · cerebral · neural · axon · connectivity · sulcus · ventricle
lateralization
Localization to one side
- communicationExchanging ideas or information
- integrationCombining into a whole
- split-brainSevered hemisphere connection
Sperry · severed · epilepsy · disconnection · bilateral · coordination · sensory · motor · cognitive · plasticity
agenesis
Congenital organ absence
- hypoplasiaIncomplete organ formation
- lesionArea of pathological change
- atrophyWasting from disuse
multiple sclerosis · demyelination · tumor · infarct · trauma · abnormality · malformation · thinning · damage · degeneration
callosumgray matter
Brain's cognitive tissue
cortex · cerebral cortex · grey matter · basal ganglia · thalamus
- corpus callosumInterhemispheric nerve bundle