Final answer:
The frontal lobe of the brain, which contains the motor cortex, is responsible for planning and coordinating perfectly timed movements in a routine.
Step-by-step explanation:
Working long hours to ensure the movements in a routine are perfectly timed deals with the frontal lobe of the brain. The frontal lobe contains the motor cortex, which is crucial for planning and coordinating movement.
This area of the brain is also involved in functions such as reasoning, attention, and decision-making. The motor commands generated in the frontal lobe are then executed, sending signals to the spinal cord and peripheral muscles to create a synchronized movement.