In livestock, diarrhea is called scours. There are many causes of diarrhea: bacterial, viral, parasites, and diet. Flystrike risk. Sheep that have diarrhea are more prone to flystrike (blowflies or maggots). To. help prevent flystrike, it is recommended that lambs be docked.
Normal and abnormal blood vessels. In a brain AVM, blood passes directly from arteries to veins via a tangle of abnormal blood vessels. A brain arteriovenous malformation (AVM) is a tangle of abnormal blood vessels connecting arteries and veins in the brain. The arteries are responsible for taking oxygen-rich blood from the heart to the brain. Veins carry the oxygen-depleted blood back to the lungs and heart.
An arteriovenous malformation (AVM) is an abnormal tangle of blood vessels in the brain or spine. Some AVMs have no specific symptoms and little or no risk to one's life or health, while others cause severe and devastating effects when they bleed.n AVM is a tangled bundle of blood vessels where arteries connect directly to veins with no capillary bed between. This creates a system of multiple feeding arteries, the tangle or nidus, and enlarged draining veins.