muscular atrophy


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Related to muscular atrophy: progressive muscular atrophy, Spinal muscular atrophy

mus·cu·lar at·ro·phy

wasting of muscular tissue. Compare: myopathic atrophy.
Synonym(s): myatrophy, myoatrophy

muscular atrophy

a condition of motor unit dysfunction, usually the result of a loss of efferent innervation.

muscular atrophy

(1) Disuse atrophy, see there.
(2) Spinal muscular atrophy, see there.

mus·cu·lar at·ro·phy

(mŭs'kyū-lăr at'rŏ-fē)
Wasting of muscular tissue.

muscular atrophy,

n decrease in size and number of muscle fibers as a result of aging, reduction in blood supply, malnutrition, or denervation. See also innervation.

mus·cu·lar at·ro·phy

(mŭs'kyū-lăr at'rŏ-fē)
Wasting of muscular tissue.

muscular

1. pertaining to a muscle.
2. having well developed muscles.

muscular asymmetry
due usually to neuronal or disuse atrophy on one side of the body.
muscular atrophy
wasting away of muscle or a muscle because of reduction in cross sectional area of muscle fibers; may be due to disease of the muscle or its nerve supply, or to disuse or nutritional inadequacy. See also hereditary spinal muscular atrophy (below).
muscular degeneration
varies in severity from degeneration of only the myofibrils or degeneration of the myofibrils plus sarcoplasm, leaving satellite cells and myonuclei and sarcolemmal laminae unaffected, or further levels of increasing severity.
muscular denervation
destruction or congenital absence of the motor nerve supply to the muscle; manifested by paralysis and atrophy and absence of spinal reflexes.
muscular denervation atrophy
progressive shrinkage of muscle fibers when the nerve supply to the muscle is severed.
Duchenne muscular dystrophy
an X-linked inherited disease in humans, which is believed to be due to a deficiency of a membrane-associated protein, dystrophin. An analogous disease has been identified in Irish terriers, Golden retrievers and mice.
muscular dystrophy
any degenerative muscular disorder due to faulty nutrition of the muscles. Causes muscle weakness, liberation of myoglobin into the circulation from skeletal muscle and subsequent wasting and possible contracture. In humans there are a group of genetically determined, painless, degenerative myopathies that are progressively crippling because muscles are gradually weakened and eventually atrophy. In food animals the principal disease in this group is enzootic muscular dystrophy caused by a nutritional deficiency of selenium and/or vitamin E. Sporadic cases of muscular dystrophy of unknown etiology occur rarely in dogs.
muscular fascicle
muscular fasciculation
muscular fatigue
during brief, intense exercise probably due in large part to the accumulation of lactate.
hereditary spinal muscular atrophy
progressive degeneration of the motor cells of the spinal cord. It is an inherited, slowly progressive flaccid tetraparesis from an early age, with muscular atrophy. Occurs as an autosomal recessive trait in Swedish lapland dogs, a dominant trait in Brittany spaniels. Also reported in German shepherd dogs, English pointers and Rottweilers. See also hereditary neuronal abiotrophy of Swedish Lapland dogs. In cattle, inherited as an autosomal recessive trait and reported in Brown Swiss, Holstein-Friesian and Red Danish calves with an onset at 3 to 8 weeks of age. There is hind limb ataxia progressing to recumbancy. Associated with lesions in the lower motor neurons of the cervical and lumbar spinal cord.
muscular hernia
hernia through an enclosing muscle sheath.
muscular hyperplasia
an increase in the size of a muscle mass due to an increase in the number of muscle cells. See also myofiber hyperplasia, ileal muscular hypertrophy.
muscular hypertrophy
an increase in the size of a muscle mass due to an increase in the length and thickness of each muscle cell without any increase in the number of cells.
muscular ischemia
short duration or temporary or partial cessation of blood supply causes loss of muscle power and possibly some muscle fiber necrosis; long duration or severe or complete cessation cause ischemic muscle necrosis and atrophy. See also compartment syndrome, downer cow syndrome.
muscular ischemic necrosis
see ischemic myonecrosis.
muscular mineralization
ectopic deposition of minerals in muscle. See mineralization.
myelopathic muscular atrophy
muscular atrophy due to a lesion of the spinal cord, as in spinal muscular atrophy.
nutritional muscular dystrophy
see muscular dystrophy (above).
muscular parasitic diseases
includes cysticercosis, hepatozoonosis, Neosprum caninum myositis, sarcocystosis, toxoplasmosis, trichenellosis.
muscular receptors
muscle spindles which respond to stretch.
muscular steatosis
excess fat deposits in muscle; a problem only at meat hygiene inspection.
muscular vascular occlusive syndrome
see ischemic myonecrosis.
muscular weakness
X-linked muscular dystrophy
see Duchenne muscular dystrophy (above).
References in periodicals archive ?
Determinants of exon 7 splicing in the spinal muscular atrophy genes, SMN1 and SMN2.
The resulting proteins are normal just like a regular cell - free from Spinal Muscular Atrophy.
What exactly is spinal muscular atrophy and whom does it affect?
We are excited that Tikvah Therapeutics will be undertaking the clinical development of these agents so that our discoveries will be commercialized to help the many patients suffering from the debilitating and devastating consequences of spinal muscular atrophy and other neurodegenerative diseases.
When Tilly was born she seemed a normal, healthy baby but she was later diagnosed with Spinal Muscular Atrophy.
Symptoms that were statistically significant are as follows: muscle stiffness, dysesthesia, hand tremor, dizziness, loss of pain sensation, muscle cramps, upper arm muscular atrophy, arthralgia, lumbago, leg tremor, tinnitus, muscular atrophy, chest pain, palpitations, fatigue, visual dimness, and staggering.
Spinal muscular atrophy (SMA) is an inherited disease that causes progressive muscle deterioration and weakness.
Spinal muscular atrophy (SMA) is one of the more common genetic conditions, with one in 40 people being carriers of the gene.
Over a 10week period, a moderate or even low intensity level fitness regimen was shown to combat such cancer recovery side effects as muscular atrophy, fatigue, depression, and decreased strength and quality of life.
Baby Joshua Lewis died of complications brought on by spinal muscular atrophy.
Despite suffering from spinal muscular atrophy, Molony, who is wheelchair-bound, was determined to complete the jump at the Hinton Skydiving Centre in Northamptonshire.
53] The current model for URLNP is based on the concepts of misdirected nerve regrowth with synkinesis, residual innervation, and muscular atrophy and fibrosis.