MUSCLE PHYSIOLOGY

Detailed explanation-1: -Muscle tone is accomplished by a complex interaction between the nervous system and skeletal muscles that results in the activation of a few motor units at a time, most likely in a cyclical manner. In this manner, muscles never fatigue completely, as some motor units can recover while others are active.

Detailed explanation-2: -It results from the rapid stretching of a tendon and attached muscle and more precisely, the muscle spindle [9]. Apart from this, muscle tone can be classified into its active and passive components, as has already been described above.

Detailed explanation-3: -Muscle tone is the amount of tension (or resistance to movement) in muscles. Our muscle tone helps us to hold our bodies upright when we are sitting and standing. Changes in muscle tone are what enable us to move.

Detailed explanation-4: -A sarcomere is the basic contractile unit of a myocyte (muscle fibre). A sarcomere is composed of two main protein filaments (thin actin and thick myosin filaments) which are the active structures responsible for muscular contraction.

Detailed explanation-5: -Motor unit recruitment is the successive activation of the same and additional motor units with increasing strength of voluntary muscle contraction.