Body's Control Center
The Nervous System is the body's control center. It's job is to send and receive information. It senses the environment outside and inside the body and relays the information to the brains. It then carries voluntary commands to organs and glands. It also regulates involuntary internal organs, muscles, and glands.
Stimulus -> Sensory Neurons -> Relay Neurons -> Motor Neurons -> Response
Stimulus -> Sensory Neurons -> Relay Neurons -> Motor Neurons -> Response
Diseases and Disorders
Bell's Palsy: A form of Neuritis that involves paralysis of the facial nerve causing weakness of the muscles of one side of the face and an inability to close the eye.
Cerebal Palsy: A nonprogressive disorder of movement resulting from damage to the brain before, during, or immediately after birth.
Motor Neurone Disease: A progressive degenerative disease of the motor system occurring in middle age and causing muscle weakness and wasting.
Multiple Sclerosis: A chronic disease of the nervous system that can affect young and middle-aged adults.
The course of this illness usually involves recurrent relapses followed by remissions, but some patients experience a chronic progressive course.
Myalgic Encephalomyelitis (ME): A condition characterized by extreme disabling fatigue that has lasted for at least six months, is made worse by physical or mental exertion, does not resolve with bed rest, and cannot be attributed to other disorders.
Neuritis: A disease of the peripheral nerves showing the pathological changes of inflammation.
(This term may also be less precisely used to refer to anydisease of the peripheral nerves, usually causing weakness and numbness.)
Parkinson's Disease: Degenerative disease process (associated with aging) that affects the basal ganglia of the brain.
Sciatica: A common condition arising from compression of, or damage to, a nerve or nerve root.
Cerebal Palsy: A nonprogressive disorder of movement resulting from damage to the brain before, during, or immediately after birth.
Motor Neurone Disease: A progressive degenerative disease of the motor system occurring in middle age and causing muscle weakness and wasting.
Multiple Sclerosis: A chronic disease of the nervous system that can affect young and middle-aged adults.
The course of this illness usually involves recurrent relapses followed by remissions, but some patients experience a chronic progressive course.
Myalgic Encephalomyelitis (ME): A condition characterized by extreme disabling fatigue that has lasted for at least six months, is made worse by physical or mental exertion, does not resolve with bed rest, and cannot be attributed to other disorders.
Neuritis: A disease of the peripheral nerves showing the pathological changes of inflammation.
(This term may also be less precisely used to refer to anydisease of the peripheral nerves, usually causing weakness and numbness.)
Parkinson's Disease: Degenerative disease process (associated with aging) that affects the basal ganglia of the brain.
Sciatica: A common condition arising from compression of, or damage to, a nerve or nerve root.