Emma just received word that her grandfather's stroke damaged a region in his brain called the substantia nigra. as a consequence of this damage, emma's grandfather will most likely:

experience tremors.

Explanation:

The substantia nigra is a part of the midbrain that is responsible for dopamine production in the brain. This region is extremely important for the stability of the human organism, any damage to this region can cause serious problems to the body, such as experiencing constant tremors in the body. Emma's grandfather will probably suffer these tremors.

Damage to substantia nigra is believed to be directly related to Parkinson's disease.

when your a dog and you need a bone.   go and eat a rabbit

the use of electrical signals that transit messages is know as