Muscle atrophy can occur due to poor nutrition, age, and genetics. 1. It refers to the breaking down of muscle fibers and is usually described as occurring in skeletal muscle; however, cardiac and smooth muscle also atrophy. Atrophy, a reduction in size that impairs tissue function, can occur in the muscles and glands of the body.It may be caused by genetic, environmental, lifestyle, or disease factors. Menu. Define pressure atrophy. The persistent displacement of tissue by constant pressure may lead to reduction in size of … Muscle atrophy can also happen if you’re bedridden or unable to move certain body parts due to a medical condition. Astronauts, for example, can experience muscle atrophy after a … Atrophy is a term used in many contexts and can be applied in many different situations. The word muscle atrophy comes from the Greek a (without) and trophe (nourishment). • Atrophy of ductus arteriosus in infants • Atrophy of thymus. It was hard to watch my mother atrophy as she experienced the weakening disease of Alzheimer’s. Atrophy is a term that describes the wasting away of cell tissue. Atrophy Definition. Paralysis of a muscle mass due to nerve injury. Definition: Decrease in the size of cells, tissues, or organs.Causes of atrophy include poor nourishment, poor circulation, loss of hormonal support, loss of nerve supply to the target organ, disuse or lack of exercise, or disease intrinsic to the tissue itself.Hormonal and nerve inputs that maintain an organ or body part are referred to as trophic. Atrophy definition, a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage. Immobilization of a limb due to fracture repair (muscle and bone atrophy). See more. Common examples are: • Atrophy of notochord & thyroglossal ducts during fetal development • Atrophy of uterus after parturition. Physiologic atrophy. In the event that a patient develops a chronic illness like cancer or HIV, bone density and muscle mass whittle down considerably. Dictionary ! to weaken in ability or function. 2. When a person gets dementia and cannot remember things anymore, it is an example of atrophy in their brain cells. Pathologic atrophy. Definition of Atrophy. According to researchers, the lack of exercise causes muscles to atrophy and become feeble. Examples of Atrophy in a sentence. Brain atrophy can refer to a loss of brain cells or a loss in the number of connections between these cells. Treatment options depend on the cause; some cases may be treatable with exercise, for instance, while others may require medical support. Definition. Atrophied definition is - having wasted away or decreased in size (as from disease or disuse). Symptoms vary, and treatment may include physical therapy, functional electric stimulation, or … ... 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