Answer:
See explanation
Explanation:
The tympanic membrane or eardrum serves as a divider between the outer ear and the middle ear structures. It is gray-pink in color when healthy and consists of three very thin layers of living tissue. The eardrum is very sensitive to sound waves and vibrates back and forth as the sound waves strike it.
Answer:
I think it's B sorry if i'm wrong
Explanation:
Multiple sclerosis, Alzheimer's disease, Parkinson's disease, epilepsy, and stroke are very common. The cause of multiple sclerosis is unknown. It's considered an autoimmune disease in which the body's immune system attacks its own tissues. In the case of MS, this immune system malfunction destroys myelin (the fatty substance that coats and protects nerve fibers in the brain and spinal cord). Alzheimer's is memory loss. Symptoms: Cognitive: mental decline, difficulty thinking and understanding, confusion in the evening hours, delusion, disorientation, forgetfulness, making things up, mental confusion, difficulty concentrating, inability to create new memories, inability to do simple math, or inability to recognize common things. Parkinsons is a disorder of the central nervous system that affects movement, often including tremors. Epilepsy isa neurological disorder marked by sudden recurrent episodes of sensory disturbance, loss of consciousness, or convulsions, associated with abnormal electrical activity in the brain. Some symptoms: <span>During a seizure, a person experiences abnormal behavior, symptoms, and sensations, sometimes including loss of consciousness. There are few symptoms between seizures. They are all terrible disorders to deal with and none of them are preventable. They aren't preventable and typically occur out of nowhere. Hope this helps!</span>
