Mindblown: a blog about philosophy.
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Pathological atrophy
Atrophy that results from the effects of disease processes.
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Myelopathic atrophy
Muscular atrophy resulting from a lesion of the spinal cord.
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Muscular atrophy
Atrophy of muscle tissue, especially due to lack of use or denervation. Muscle weakness and reduction in muscle tissue size can occur due to various factors. Muscular atrophy can stem from different sources such as injuries, inadequate nutrition, diminished use of a body part, deterioration of muscle cells, and conditions affecting the nerves that provide…
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Multiple systems atrophy
A neurological syndrome marked by Parkinson’s disease, autonomic failure (loss of sweating, urinary incontinence, dizziness or syncope on arising, miosis), and unsteady gait (ataxia).
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Group atrophy
A change in the appearance of muscle, fibers that have lost their nerve supply; marked by an increase in the size of the motor unit and a decrease in the fibers within to a uniformly small size.
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Denervation atrophy
Muscular wasting caused by inhibition of a motor nerve.
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Correlated atrophy
Wasting of a part following destruction of a correlated part, such as a nerve that supplies a muscle.
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Compression atrophy
Atrophy due to constant pressure on a part.
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Brown atrophy
Atrophic tissue that is yellowish-brown rather than its normal color. It is seen principally in the heart and liver of the aged. The pigmentation is due to the presence of lipofuscin, the “wear and tear” pigment that may be associated with aging. Its presence in tissue is a sign of injury from free radicals.
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Atrium of the heart
The upper chamber of each half of the heart. The right atrium receives deoxygenated blood from the entire body (except lungs) through the superior and inferior venae cavae and coronary sinus; the left atrium receives oxygenated blood from the lungs through the pulmonary veins. Blood passes from the atria to the ventricles through the atrioventricular…
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