Nervous+System

Nervous system

http://www.innerbody.com/image/nervov.html

The main function of the Nervous System is to maintain the entire body and to also connect all your nerves; so basically, it maintains everything you do in your everyday life. Your Nervous System controls all feelings, physical or mental, such as pleasure, anger, pain, sadness, and everything else you have ever felt.



brain=controls the body.



spinal cord=sinds sign to the body.

eyes=you can see stuff.

nose=you can smell ear=you can hear

http://www.nsta.org/publications/interactive/nerves/

http://library.thinkquest.org/10348/

http://www.getbodysmart.com/ap/nervoussystem/nervoussystem.html

ms Not all people with relapsing multiple sclerosis experience the same symptoms. They vary from person to person. The type of relapsing multiple sclerosis symptoms you experience may depend on where the disease activity is happening. For example, disease activity in one part of the brain may cause dizziness. Similarly, disease activity in the spinal cord may cause weakness, while disease activity on the optic nerve may cause blurred vision. If you or someone you know has been diagnosed with relapsing multiple sclerosis, you may be ready to learn more about treatment options.

parkinson disease Parkinson disease (PD) is characterized by a slowing of voluntary movements, bradykinesia, muscular rigidity and tremor at rest. These abnormalities result from a reduction of neurons that make dopamine in the pars compacta of the substantia nigra. The axons of these neurons normally release this neurotransmitter where they synapse, in parts of the basal ganglia called the caudate nucleus and putamen or, collectively, the corpus striatum. Dopamine usually works as an inhibitory neurotransmitter in the corpus striatum where it acts on cholinergic neurons.

=Deafness=

Hearing loss is extremely common and can present at any time from infancy to old age. About 1 in 1000 infants has profound hearing impairment, with half thought to be of genetic origin. Many deafness genes exist, but the most common cause of hearing loss in American and European populations is a mutation in the //connexin 26// (//Cx26//) gene. //Cx26// has a carrier rate of 3%, similar to that for cystic fibrosis, and it causes about 20% of childhood deafness.

http://www.ncbi.nlm.nih.gov/books/NBK22204/

http://www.johnshopkinshealthalerts.com/register_ppc_memory/dementia_reg_landing.html?st=ppc&s=GLP_035002_Dementia&c1=GAW_CM_NW&source=MEMO_DEME&kw=Dementia&cr5=4365203884&gclid=CLPKgc7qoKYCFY64KgodzlNkng