written by Doctors Spinal muscular atrophy types I, II or III belong to a group of inherited diseases. Muscle atrophy is the loss of skeletal muscle mass that can be caused by immobility, aging, malnutrition, medications, or a wide range of injuries or diseases that impact the musculoskeletal or nervous system. Medical definition of multiple system atrophy: any of several progressive neurodegenerative diseases that are of unknown cause, have an onset usually during middle age and are characterized by a combination of symptoms (as orthostatic hypotension, urinary incontinence, rigidity, and loss of balance) indicative of autonomic dysfunction, parkinsonism, and cerebellar ataxia —abbreviation MSA. Optic Atrophy Definition Optic atrophy can be defined as damage to the optic nerve resulting in a degeneration or destruction of the optic nerve. There is no cure for this muscular atrophy. Seek immediate medical care (call 911) for serious symptoms of cerebral atrophy, such as seizures or loss of consciousness. Causes of atrophy include mutations (which can destroy the gene to build up the organ), poor nourishment, poor circulation, loss of hormonal support, loss of nerve supply to the target organ, excessive amount of apoptosis of cells, and disuse or lack of exercise or disease intrinsic to the tissue itself. Spinal muscular atrophy types I, II or III belong to a group of inherited diseases. Symptoms typically develop in adulthood, usually in the 50s or 60s. Free. The main cause of muscle wasting is a lack of physical activity. atrophy definition: The definition of atrophy is the weakening, loss, wasting away, break-down or growth halt of something such as a body part, plant, person, place or thing. Seek immediate medical care (call 911) for serious symptoms of cerebral atrophy, such as seizures or loss of consciousness. Atrophic definition, a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage. Seek prompt medical care for any symptoms of cerebral atrophy that interfere with daily life, such as changes in responsiveness and difficulty with speaking, vision or movement. Pathologic atrophy is seen with aging, starvation, and diseases such as Cushing disease (because of taking too much medicines called corticosteroids). Multiple system atrophy (MSA) affects many parts of your body. MSA is classified by two types: parkinsonian and cerebellar. Spinal muscular atrophy (SMA) is a group of disorders of the motor neurons (motor cells). Atrophy is the term used to describe the wasting away or reduction in size of a part of the body, ultimately decreasing the function of the affected area. Brain atrophy — or cerebral atrophy — is the loss of brain cells called neurons. Seek prompt medical care for any symptoms of cerebral atrophy that interfere with daily life, such as changes in responsiveness and difficulty with speaking, vision or movement. Neurogenic atrophy is the most severe type of muscle atrophy. These disorders are passed down through families (inherited) and can appear at any stage of life. Learn about Atrophy at online-medical-dictionary.org. Atrophy is the partial or complete wasting away of a part of the body. Free. Systemic estrogen therapy If vaginal dryness is associated with other symptoms of menopause, such as moderate or severe hot flashes, your doctor may suggest estrogen pills, patches or gel, or a higher dose estrogen ring. Signs and symptoms depend on the type of spinal muscular atrophy, but may include hypotonia, tremors, impaired breathing, and abnormal gait. The type depends on the symptoms you have at diagnosis. Symptoms of spinal muscular atrophies are weakness and wasting of the voluntary muscles in the arms and legs of infants and children. Brain atrophy can refer to a loss of brain cells or a loss in the number of connections between these cells.

See more. Medical definition of spinal muscular atrophy: any of several inherited disorders (as Kugelberg-Welander disease) that are characterized by the degeneration of motor neurons in the spinal cord resulting in muscular weakness and atrophy and that in some forms (as … Spinal muscular atrophy is a hereditary disease that destroys lower motor neurons nerve-cells in the brain stem and spinal cord. Medical definition of atrophic: relating to or characterized by atrophy.