radiatio

(ra-dJ-a's hl-o) [L.] Radiation, r. cor'por is callo'si [BNA], radiation of the corpus callosum, the spreading out of the fibers of the corpus callosum in the centrum semiovale of each cerebral hemisphere, r. cor'por is stria'ti [BNA], radiation of the corpus striatum, fibers pa ing from the thalamus and hypothalamus to the caudate and lenticular nuclei and thence to the cortex, r. occipitothalam'ica [BNA], occipitothalamio radiation, optic radiation, a longitudinal band of fibers in the medullary portion of the occipital lobe of the cerebrum, lying between the tapetura and the fasciculus longitudinal is inferior; the fibers pa from the thalamus, the lateral geniculate body, and the superior quadrigeminal body to the cortex of the occipital lobe. r. op'tic a, optic radiation, 1. occipitothalamica [BNA]. r. pyramid a'lis, pyramidal radiation, white fibers pa ing to the cortex from the pyramidal tract, r. tegmenta'lis, fibers from the