[TA] numerous small branches from the sphenoid part (M1 segment) of the middle cerebral arteries supplying the lateral and anterior parts of the corpus striatum. SYN: arteriae centrales anterolaterales [TA], lenticulostriate arteries (1)*, anterolateral striate arteries, anterolateral thalamostriate arteries, arteriae thalamostriatae anterolaterales, arteries of cerebral hemorrhage, lateral striate arteries.