myotonia

myotonia

 [mi″o-to´ne-ah]

any disorder involving tonic spasm of muscle. adj., adj myoton´ic.

myotonia atro´phica 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 myotonic dystrophy.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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]

Farlex Partner Medical Dictionary © Farlex 2012

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.

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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; idiopathic

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

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 the muscle membrane, specifically the ion channels.

[myo- + G. tonos, tension, stretching]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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]

Medical Dictionary for the Dental Professions © Farlex 2012