With dilated cardiomyopathy (DCM) the heart muscle becomes thinner than normal, is weakened, and results in poor pumping ability, valve leakage and arrhythmia. This loss of the heartâs ability to properly contract is a common acquired disease of the heart in dogs.
Collateral Vessel Closure. Collateral vessels are abnormal blood vessels that connect the aorta with the pulmonary arteries. The aorta is a blood vessel that carries blood from the heart to arteries throughout the body. Pulmonary arteries are the vessels that transfer blood from the heart back to the lungs for oxygen.
Best Answer: Arteries are blood vessels that carry oxygenated blood away from the heart. Exceptions to this include the pulmonary and umbilical arteries. Capillaries are the smallest of a body's blood vessels and are part of the microcirculation. They are only 1 cell thick.rteries are muscular blood vessels that carry oxygenated blood away from the heart (except the pulmonary and umbilical arteries). Arteries carry oxygen-rich blood at high pressure, so they are tough on the outside and smooth on the inside.