Due to neuroplasticity, violin, viola, and cello players have a larger proportion of which of the following areas devoted to their hands?
A. reticular formation
B. association cortex
C. motor cortex
D. limbic system

C. primary motor cortex

Explanation:

Due to the ability of the brain to reorganize itself through the formation of new neural connection throughout life, the primary motor cortex of players of musical instrument such as violin, cello, and viola is largely devoted to the hands of these players. The role of the primary motor cortex is for the generation of impulses that control movement execution.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.