| 释义 |
myotoniaenUK
my·o·to·ni·a M0510800 (mī′ə-tō′nē-ə)n. Tonic spasm or temporary rigidity of one or more muscles, often characteristic of various muscular disorders.
my′o·ton′ic (-tŏn′ĭk) adj.myotonia (ˌmaɪəˈtəʊnɪə) n (Medicine) lack of muscle tone, frequently including muscle spasm or rigidity. Also called: amyotonia myotonic adjmy•o•to•ni•a (ˌmaɪ əˈtoʊ ni ə)
n. tonic muscle spasm or muscular rigidity. [1895–1900] my`o•ton′ic (-ˈtɒn ɪk) adj. myotoniaa condition of tonic muscle spasm or rigidity of the muscles. — myotonic, adj.See also: Body, HumanmyotoniaThe inability of a muscle to relax after the need for contraction has passed.Thesaurus| Noun | 1. | myotonia - abnormally long muscular contractions; slow relaxation of a muscle after a contractiontonicity, tonus, tone - the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli; "the doctor tested my tonicity"acromyotonia - myotonia of the extremities only; causes spastic deformity of the hand or footmyotonia congenita, Thomsen's disease - a mild, rare, congenital form of myotonia characterized by muscle stiffness |
TranslationsMyotoniaenUK
myotonia[‚mī·ə′tō·nē·ə] (medicine) Tonic muscular spasm occurring after injury or infection. Myotonia a hereditary neuromuscular disease in which a contracted muscle is unable to relax for a long time; muscular relaxation proceeds very slowly. Depending on the clinical course of the disease, congenital, atrophic, cold, and paradoxical forms of myotonia are distinguished. The disease may occur in several members of a family; males are more often affected. There are no marked morphological changes in the nervous system or the muscles. There may be dysfunctions of the autonomic nervous system and the endocrine glands. Increased sensitivity to acetylcholine and potassium are characteristic of the disease. The principal sign of myotonia is impaired myofibril contractility, that is, relaxation of contracted muscles is greatly impaired. The muscles are firm to the touch. Myotonia progresses slowly, with general deterioration frequently setting in after overexposure to low temperatures, mental stress, and excessive fatigue. Treatment includes hormone therapy, vitamin therapy, and physical therapy. REFERENCEBadalian, L. O., V. A. Tabolin, and Iu. V. Vel’tishchev. Nasledstvennye bolezni u detei. Moscow, 1971.myotoniaenUK
myotonia [mi″o-to´ne-ah] any disorder involving tonic spasm of muscle. adj., adj myoton´ic.myotonia atro´phica dystrophy" >myotonic dystrophy.myotonia conge´nita a hereditary disease marked by tonic spasm and rigidity of certain muscles when attempts are made to move them. The stiffness tends to disappear as the muscles are used.myotonia dystro´phica dystrophy" >myotonic dystrophy.my·o·to·ni·a (mī'ō-tō'nē-ă), Delayed relaxation of a muscle after a strong contraction, or prolonged contraction after mechanical stimulation (as by percussion) or brief electrical stimulation; due to abnormality of the muscle membrane, specifically the ion channels. [myo- + G. tonos, tension, stretching] myotonia (mī′ə-tō′nē-ə)n. Tonic spasm or temporary rigidity of one or more muscles, often characteristic of various muscular disorders.
my′o·ton′ic (-tŏn′ĭk) adj.myotonia Neurology Delayed muscle relaxation after voluntary contraction–action myotonia or mechanical stimulation–percussion myotonia Types Chloride channel-related disorders–eg, myotonia congenita, Thomsen type; protein kinase-related disorders–eg, myotonic dystrophy; sodium channel-related disorders–eg, hyperkalemic periodic paralysis; idiopathicmy·o·to·ni·a (mīō-tōnē-ă) Delayed relaxation of a muscle after a strong contraction, or prolonged contraction after mechanical stimulation (as by percussion) or brief electrical stimulation; due to abnormality of the muscle membrane, specifically the ion channels. [myo- + G. tonos, tension, stretching]my·o·to·ni·a (mīō-tōnē-ă) Delayed relaxation of a muscle after a strong contraction, or prolonged contraction after mechanical stimulation (as by percussion) or brief electrical stimulation; due to abnormality of muscle membrane, specifically ion channels. [myo- + G. tonos, tension, stretching]myotoniaenUK
Related to myotonia: myotonia congenita, myotonic dystrophy, myotonia dystrophicaWords related to myotonianoun abnormally long muscular contractionsRelated Words- tonicity
- tonus
- tone
- acromyotonia
- myotonia congenita
- Thomsen's disease
|