Sulfur and iron: since this is a mixture, the sulfur retains its properties (its yellow color, for example), and the iron retains its properties (its black color, for example). These properties can be used to separate the two elements. For iron sulfide, two elements (sulfur and iron) are heated together so that they form the compound iron sulfide. Although iron sulfide contains both sulfur and iron, it is not a mixture: it is a pure substance. Both the sulfur and the iron have âgiven upâ their individual properties to become a compound.
Scoliosis can affect the normal lordotic curvature in the neck. Cervical spondylolisthesis is a major source of reversed lordotic curvature. Severe disc pathologies can facilitate a gradual loss or reversal of cervical lordosis.Vertebral irregularities, such as wedging, can definitely contribute to lordotic alteration.eversal of Cervical Lordosis Causes. The spinal curvature in the neck is constantly in flux to some degree. Congenital conditions and developmental conditions can have lasting effects on the natural degree of curvature typically demonstrated from patient to patient.
Loss of normal curve: Our cervical spine (neck) typically is curved with the head and shoulder portions slightly behind the mid neck portion. That is similar to your low back curvature. Both are termed lordosis. It is opposite to the curve of your back at the ribs, called kyphosis.Loss of lordosis in the neck is usually from spasm, or side view x-rays with your head on too-high a pillow.et help from a doctor now âº. Lordosis: Normally the neck area, or cervical spine, has a curve where the middle part bends out toward the front of the body. The xray here shows a loss of some of that normal curve. Losing this curve can be caused by many things including poor posture, neck muscle strain or osteoporosis.