Atrophy is a term that describes the wasting away of cell tissue. Atrophied definition is - having wasted away or decreased in size (as from disease or disuse). 2. It was hard to watch my mother atrophy as she experienced the weakening disease of Alzheimer’s. Overall, the proper use of the term is to describe … Muscle atrophy can occur due to poor nutrition, age, and genetics. Define pressure atrophy. Muscle atrophy mechanisms are divided into three groups – physiologic, pathologic, and neurogenic. Atrophy Definition. Brain atrophy can refer to a loss of brain cells or a loss in the number of connections between these cells. In the event that a patient develops a chronic illness like cancer or HIV, bone density and muscle mass whittle down considerably. 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. Common examples are: • Atrophy of notochord & thyroglossal ducts during fetal development • Atrophy of uterus after parturition. Menu. Dictionary ! Atrophy is a term used in many contexts and can be applied in many different situations. Give two examples of disuse atrophy. Paralysis of a muscle mass due to nerve injury. See more. The persistent displacement of tissue by constant pressure may lead to reduction in size of … Definition. According to researchers, the lack of exercise causes muscles to atrophy and become feeble. The word muscle atrophy comes from the Greek a (without) and trophe (nourishment). How to use atrophied in a sentence. Five Types of Atrophy. Definition of Atrophy. 1. 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. 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 definition, a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage. Depending upon the underlying cause, pathologic atrophy may be localized or generalized: a. Physiologic atrophy. • Atrophy of ductus arteriosus in infants • Atrophy of thymus. Muscle atrophy can also happen if you’re bedridden or unable to move certain body parts due to a medical condition. 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