Flow Dynamics

So lightly and invisibly I hardly knew it, river of blood descending without joy back to the heart through the frail vein all the time —the largest of the body!— shredded then dissolved ("obliterated") and there was a sudden seepage into surrounding tissue instead of the blood pouring out as you'd expect forever, and a new vein formed to bypass what was gone like a wild meander even the smallest flood ends, and the river goes straight from that point. But in my case the thin-walled base-ends held forming an anabranch, a section of a river that diverts from the main channel, rejoins it downstream. Local ones can be caused by or make small islands in the watercourse but sometimes they flow hundreds of miles like the Bahr el Zeraf in the south Sudan that splits from the Bahr al Jabal of the White Nile, doesn't return until Malakal instead of leaving behind, as it could have with the blood being old, a full-fledged oxbow lake that before too long will blister in the sun, become a little blue scar beside the heart.