Final answer:
Wanda's difficulty with coordinating finger movements for playing the flute after a head injury suggests she damaged her cerebellum, which is responsible for fine-tuning movements and coordination.
Step-by-step explanation:
When Wanda fell and hit her head, resulting in difficulty coordinating finger movements required for complex musical pieces, it is highly likely that she damaged her cerebellum. The cerebellum is a crucial part of the brain involved in coordinating movement and ensuring balance. This area of the brain is responsible for the fine-tuning of movements, which is essential for activities that require a high degree of precision, such as playing the flute. When the cerebellum is not functioning properly, coordination and balance can be severely affected, making it challenging to perform tasks that were once routine.
Electromyography and MRI tests would show deficiencies in the cerebellum, confirming issues with motor coordination. The cerebellum and spinal cord belong to the functional division of the nervous system involved with coordinating and executing smooth, controlled movements. Lastly, the cerebellum's importance is emphasized when learning new motor tasks—demonstrating its critical role in adaptive and learned movements.