Erasistratus accurately described the structure of the brain, including the cavities and membranes, and made a distinction between its cerebrum and cerebellum During his study in Alexandria, Erasistratus was particularly concerned with studies of the circulatory and nervous systems.
ɪɹˈæsɪstɹˌæɾəs ˈækjʊɹətli dᵻskɹˈaɪbd ðə stɹˈʌktʃɚɹ ʌvðə bɹˈeɪn, ɪŋklˈuːdɪŋ ðə kˈævᵻɾiz ænd mˈɛmbɹeɪnz, ænd mˌeɪd ɐ dɪstˈɪŋkʃən bᵻtwˌiːn ɪts sɚɹˈiːbɹəm ænd sˌɛɹɪbˈɛləm dˈʊɹɹɪŋ hɪz stˈʌdi ɪn ˌælɪɡzˈændɹiə, ɪɹˈæsɪstɹˌæɾəs wʌz pɚtˈɪkjʊlɚli kənsˈɜːnd wɪð stˈʌdiz ʌvðə sˈɜːkjʊlətˌoːɹi ænd nˈɜːvəs sˈɪstəmz.