FiTour Basic Physiology Questions And
Answers
All or none law of skeletal muscle contraction Given a threshold or Supra threshold
stimuli, a muscle fiber will contract all the way or not at all.
Sliding Filament Theory The actin slides over the myosin pulling the ends of the
sarcomere together creating a contraction and shortening the muscle.
isometric contraction A muscle contraction in which the force of the muscle is greater
than the resistance, resulting in joint movement with shortening of the muscle..
Concentric Phase A shortening of the muscle as a result of its contraction
Eccentric Phase A lengthening of the muscle during its contraction; resists movement
caused by another force
isometric contraction A muscle contraction in which the muscle length is unchanged.
Answers
All or none law of skeletal muscle contraction Given a threshold or Supra threshold
stimuli, a muscle fiber will contract all the way or not at all.
Sliding Filament Theory The actin slides over the myosin pulling the ends of the
sarcomere together creating a contraction and shortening the muscle.
isometric contraction A muscle contraction in which the force of the muscle is greater
than the resistance, resulting in joint movement with shortening of the muscle..
Concentric Phase A shortening of the muscle as a result of its contraction
Eccentric Phase A lengthening of the muscle during its contraction; resists movement
caused by another force
isometric contraction A muscle contraction in which the muscle length is unchanged.
