The strength of a muscle contraction depends on what?
the length of the muscle

the temperature of the muscle

the strength of nerve impulses received in the muscle from the brain

the force put upon the muscle

the heat conduction of the muscle

Contraction in which the muscle length remains the same but the tension increases. ... -muscles do not always contract using 100% of their strength. The strength of a muscle's contraction depends on the amount of stimuli, the load placed on the muscle, and other factors.

The strength of a muscle contraction is determined by the size and number of motor units being stimulated.

Explanation:

activation of phospholipase c (plc) indirectly increases intracellular ions through inositol triphosphate (ip3).