Final answer:
Recruitment is the ability of the neuromuscular system to allow all muscles to work synergistically by activating motor units in a coordinated manner.
Step-by-step explanation:
The ability of the neuromuscular system to allow all muscles to work synergistically is called recruitment. This is the process by which motor units in a muscle are activated to produce a coordinated muscle contraction. When necessary, the maximal number of motor units in a muscle can be recruited simultaneously to produce maximum force, but to prevent muscle fatigue, some motor units rest while others are active. This allows for longer muscle contractions and efficient utilization of skeletal muscles.