Stephen J. Schueler, M.D.

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Muscle Twitches Anatomy

To better understand muscle cramps, it helps to understand the anatomy of the muscles.

Muscles make up about 40% of total body weight. The human body contains over 300 muscles that provide movement for the entire body.

Examples of major muscles include the:

  • Whole body view
  • Abdominal muscles
  • Face
  • Back
  • Chest
  • Shoulder
  • Arm
  • Neck
  • Thigh
  • Leg

Last Updated: Nov 4, 2008 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Muscle Twitches References
  1. de Carvalho M, Swash M. Cramps, muscle pain, and fasciculations: not always benign? Neurology. 2004 Aug 24;63(4):721-3. [15326252]
  2. Diener HC, Dethlefsen U, Dethlefsen-Gruber S, Verbeek P. Effectiveness of quinine in treating muscle cramps: a double-blind, placebo-controlled, parallel-group, multicentre trial. Int J Clin Pract. 2002 May;56(4):243-6. [12074203]
  3. Jansen PH, Veenhuizen KC, Wesseling AI, de Boo T, Verbeek AL. Randomised controlled trial of hydroquinine in muscle cramps. Lancet. 1997 Feb 22;349(9051):528-32. [9048790]
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