Place a single word into each sentence to make it correct an

Place a single word into each sentence to make it correct, and then place each sentence into a logical paragraph order.

Solution

When all nerve fibres are stimulated, an increase in stimulus strength will produce decrease no in muscle tension

The more motor units excited, the stronger the contraction.

Subthreshold stimuli produce no muscle contraction

When stimuli reach or exceed threshold they excite more motor units.

When multiple motor units are excited, it is termed motor unit summation.

Contraction refers to the turning on of the cross bridge cycle. Whether there is an accompanying change in muscle length depends upon the external forces acting on the muscle. Increasing the frequency of action potentials in a muscle fiber increases the mechanical response (shortening) upto the level of maximal tetanic tension. The tension produced by whole muscle contraction depends on the amount of tension developed by each fiber and the number of active fibers in the muscle.