Irritable Bowel Syndrome. Irritable bowel syndrome (IBS) is a disorder that causes cramping and pain in your stomach, among other symptoms. IBS can also cause bloating and gas, which could cause you to have a distended abdomen.rritable Bowel Syndrome. Irritable bowel syndrome (IBS) is a disorder that causes cramping and pain in your stomach, among other symptoms. IBS can also cause bloating and gas, which could cause you to have a distended abdomen.
Salvinia molesta is native to southeastern Brazil and northern Argentina. It grows year round and has been found in north, central and southwest Florida where it is quickly eradicated when found. Giant salvinia grows rapidly and produces a dense floating canopy on the surface of ponds, lakes, and rivers. Salvinia molesta is a floating aquatic fern that thrives in slow-moving, nutrient-rich, warm, freshwater. It spreads aggressively by vegetative fragments. It is dispersed long distances within a waterbody (via water currents) and between waterbodies (via animals and contaminated equipment, boats or vehicles).
From Wikipedia, the free encyclopedia. The superior vena cava (also known as the cava or cva) is a large diameter (24 mm), yet short, vein that carries deoxygenated blood from the upper half of the body to the heart 's right atrium.It is located in the anterior right superior mediastinum.he azygos vein joins it just before it enters the right atrium, at the upper right front portion of the heart. It is also known as the cranial vena cava in other animals. No valve divides the superior vena cava from the right atrium.