Answer :
Final answer:
Alzheimer's disease, Parkinson's disease, and Huntington's disease are three common degenerative diseases of the nervous system.
Explanation:
The three common degenerative diseases of the nervous system are Alzheimer's disease, Parkinson's disease, and Huntington's disease. These diseases are characterized by a loss of nervous system functioning, resulting in the death of neurons and affects motor function and/or dementia. The causes of these diseases vary, with some being genetic, such as Huntington's disease, while others like Alzheimer's and Parkinson's diseases are not entirely understood.
