Template:Aquatic layer topics. An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth âs surface.
Murad discovered in 1977 that nitroglycerin and related artery-widening compounds act by releasing nitric oxide. Furchgott later concluded that cells in the inner lining of blood vessels secrete some unknown substance that makes vessels dilate.
Nitric Oxide (NO) is NOT the same as Nitrous Oxide (N2O). Nitric Oxide is one molecule of nitrogen, one of oxygen. Nitrous Oxide has 2 molecules of nitrogen, and one of oxygen. And that extra molecule of nitrogen changes the gas completely. Nitrous Oxide (N2O) has been getting some press recently, since Demi Moore was hospitalized for inhaling canned Nitrous Oxide (in a form called whippets) and having a seizure. Nitrous oxide is used in aerosol cans, to propel whipped cream or cooking spray out of the bottle.