Fine motor control originates in the cerebellum were all organized, efficient and large-scale movements of muscle groups are coordinated by the nervous system. However, fine motor control is coordinated through an added connected organ in the brain called the substantia nigra. This area allows you to do very delicate work.It’s amazing: The same muscles and nerves that perform vigorous movements, like those used to swing a golf club or tennis racquet, also coordinate refined and delicate movements used for artwork or sign language. This is possible because of the intricate communication between the substantia nigra, the cerebellum, spine, nerves and muscles.
The brain’s ability to resist disease
You brain has an amazing capacity called “system redundancy.” This is the ability to adapt to loss. You brain has built-in systems to take over functions in case of injury or illness. Take the substantia nigra for example, it coordinates fine muscle control. Do you know how much of this organ you’d have to lose before you would develop a movement disorder … 5% … 10% … 20%? The fact is, movement disorders such as Parkinson’s do not appear until about 60% of this area of the brain has died!
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