Why is Arctic sea ice important? Arctic sea ice keeps the polar regions cool and helps moderate global climate. Sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. As sea ice melts in the summer, it exposes the dark ocean surface.
Lipodystrophy is a medical condition characterized by abnormal or degenerative conditions of the body's adipose tissue. lipodystrophy can be a lump or small dent in the skin that forms when a person performs injections repeatedly in the same spot.
Atrophy resulting from disease of the tissue itself, or loss of trophic support due to other disease is termed pathological atrophy. Shrinkage in the size of the cell by loss of cell substance is known as atrophy. It represents a form of adaptive response and may culminate in cell death.ormonal and nerve inputs that maintain an organ or body part are referred to as trophic. Atrophy is a general physiological process of reabsorption and breakdown of tissues, involving apoptosis on a cellular level. It can be part of normal body development and homeostatic processes, or as a result of disease.