Characteristics of muscle contraction

CHARACTERISTICS OF MUSCLE CONTRACTION

Stimulus

  • It is an external agent, when applied to an excitable tissue provoke a visible response .
  • Types of Stimuli (Based on strength)
    • Sub threshold : sub minimal/ low intensity, unable to produce a response
    • Threshold : minimum intensity, strong enough to initiate an action potential
    • Sub maximal : higher strength than threshold
    • Maximal : highest threshold strength
    • Supra maximal : destructive to tissues
  • Classification of stimulus
    • Mechanical : Pain, Pressure, and Touch
    • Chemical : Acid, Alkali; Thermal: Warmth, Cold
    • Osmotic : Hypertonic solution, Hypotonic solution
Last modified: Friday, 3 June 2011, 7:42 AM