The most common compound is water. Its molecule is made up of two hydrogen atoms and one oxygen atom. Hydrogen is the most common atom in the universe, and oxygen is the thrid â¦ most common, so water has to be the number one compound.289, 758.)   However water is the most common substance on the surface of the  Earth.   In the atmosphere, Nitrogen is the most common element (78%).
Not to be confused with Spastic quadriplegia. Tetraplegia, also known as quadriplegia, is paralysis caused by illness or injury that results in the partial or total loss of use of all their limbs and torso; paraplegia is similar but does not affect the arms.The loss is usually sensory and motor, which means that both sensation and control are lost.Tetraparesis or quadriparesis, on the other hand, means muscle weakness affecting all four limbs. It may be flaccid or spastic.his can mean a loss or impairment in controlling bowel and bladder, sexual function, digestion, breathing and other autonomic functions. Furthermore, sensation is usually impaired in affected areas. This can manifest as numbness, reduced sensation or burning neuropathic pain.
Not to be confused with Paruresis. This article is about the physical malady. For the mental disorder, see general paresis of the insane. Paresis is a condition typified by a weakness of voluntary movement, or partial loss of voluntary movement or by impaired movement. When used without qualifiers, it usually refers to the limbs, but it can also be used to describe the muscles of the eyes (ophthalmoparesis), the stomach (gastroparesis), and also the vocal cords (Vocal cord paresis). Neurologists use the term paresis to describe weakness, and plegia to describe paralysis in which all voluntary movement is lost.