Definition: The tetrastrum is a structure in the human brain that plays a crucial role in communication, particularly when it comes to language acquisition and comprehension. It consists of five distinct structures: the temporal lobe (frontal lobe), which processes visual and auditory information; the parietal lobe (basal ganglia), which handles motor functions related to speech production; the occipital lobe (cerebellum, cerebellar cortex), which is involved in the coordination of
what should be said.