Branch Retinal Artery Occlusion - Pathophysiology. 1  Most commonly, a branch retinal artery occlusion occurs secondary to an embolus. Emboli typically originate within vessels upstream where they dislodge and travel within the circulatory system to ultimately become lodged downstream in a vessel with a smaller lumen.
Ragtime is a musical form or style that is defined as a syncopated melody (usually in 2/4 time) over a regular, march tempo bass line. Improvisation was common but little of that aspect has been preserved.
Definition of rag. 1  1a : a waste piece of clothb rags plural : clothes usually in poor or ragged conditionc : clothing the rag trade. 2  2 : something resembling a rag. 3  3 : newspaper; especially : a sleazy newspaper.