What are different types of emboli depending on route?

Direct (w/direction of circulation, stops downstream when space cannot be passed, in veins of great circulation (stops at pulmonary artery branch, if large blocks trunk of pulmonary artery or right or left PA, smaller go intraparenchymal (right chamber) Left chamber stops in lower limb, kidney, spleen, brain, liver...) Retrograde (small neoplastic emboli) Paradoxical (right to left circulation through abnormal path (patent foramen ovale for example))