By By NicoleNicole HernandezHernandez

MuhammadMuhammad ArifArif

JanaJana MakkiMakki

Terry Terry Huang!Huang!!!!!

WhatWhat is is thethe major major organsorgans of of your your system system andand their their jobsjobs??

• The major organ of the nervous system are the The major organ of the nervous system are the brain and brain and the spinal cord. The brain tells you the spinal cord. The brain tells you what to do and how what to do and how to react. Sciatic nerves send to react. Sciatic nerves send nerve impulses to the nerve impulses to the muscle and skin. The five muscle and skin. The five sense’s are to see, to hear, to sense’s are to see, to hear, to taste, to feel and taste, to feel and to smell. Also every impulse is made of to smell. Also every impulse is made of neutrons neutrons (nerve cells). The nervous system “talks to the (nerve cells). The nervous system “talks to the other parts” of the body too. other parts” of the body too.

• There are 31 pairs of Spinal Nerves. They There are 31 pairs of Spinal Nerves. They are are mixed nerve that provide two way mixed nerve that provide two way communications. Also an average brain communications. Also an average brain weighs weighs about 3 pounds. The spinal cord about 3 pounds. The spinal cord gets gets information to the brain(Spinal information to the brain(Spinal cord=highway of the body). Some other cord=highway of the body). Some other major major organs of the brain are the organs of the brain are the hypothalamus, hypothalamus, cerebellum, cerebrum, cerebellum, cerebrum, pituitary. The pituitary. The hypothalamus controls hypothalamus controls temperature, cerebellum temperature, cerebellum controls how you controls how you move and balance, the move and balance, the cerebrum controls cerebrum controls how you want to move and how you want to move and lastly the lastly the pituitary release hormones which pituitary release hormones which controls controls growth. growth.

What What are are thethe functions functions ofof the the nervous nervous systemsystem?? How How doesdoes it it dodo

itit??• The function are issuing nerve The function are issuing nerve

impulses impulses and analyzing sensory data. and analyzing sensory data. Carrying the Carrying the impulses to and from impulses to and from the body voluntary the body voluntary muscles can muscles can control and move your body. control and move your body. The The nervous system transits signals nervous system transits signals through your body. The signals are through your body. The signals are transmitted by your brain. transmitted by your brain.

• The nervous system receives The nervous system receives information information and sends it to the brain. and sends it to the brain. The brain is the The brain is the main control of your main control of your body. It tells your body. It tells your body what to do.body what to do.

Why Why is is youryour system system importantimportant for for survivalsurvival??

• All the organ and muscles rely on All the organ and muscles rely on these these nerve impulses to function. It is nerve impulses to function. It is the master the master control unit in the body. It control unit in the body. It has the has the blueprints of your body. The blueprints of your body. The nervous system has the brain nervous system has the brain which which you cannot live without it. The you cannot live without it. The nervous nervous system is what lets you feel system is what lets you feel things .things .

• The nervous system controls everything you do including breathing, walking, thinking and feeling. It controls an wide area of functions including some motor skills and body reactions.

DiseaseDisease and and disordersdisorders of of the the systemsystem??

• Alzheimer's disease- slowly over time Alzheimer's disease- slowly over time destroys nerve cells and surrounds destroys nerve cells and surrounds cells in center of nervous system.cells in center of nervous system.

• Schizophrenia- Change in behavior Schizophrenia- Change in behavior (actions)(actions)

• Multiple Sclerosis- Occurs when Multiple Sclerosis- Occurs when myelin is damaged.myelin is damaged.

• Autism- Trouble talking or showing Autism- Trouble talking or showing communication like hand signal.communication like hand signal.

• Paralysis memory loss blindness , loss of motor skills, speaking ability, hearing loss, coma or transverse myelitis.

VocabularyVocabulary

Spinal nerves- nerves in the spine.Spinal nerves- nerves in the spine.Impulses- electrochemical signalsImpulses- electrochemical signalsCyton- the cell body in a neutronCyton- the cell body in a neutronNeutron- make up impulsesNeutron- make up impulsesVoluntary muscles- the muscles you Voluntary muscles- the muscles you

control and movecontrol and moveMetabolism- things happening in Metabolism- things happening in

your body to keep it alive.your body to keep it alive.

Rely- depending onRely- depending onBlue prints- what show you start out Blue prints- what show you start out

with to build somethingwith to build somethingAkinesia- when you cannot moveAkinesia- when you cannot moveProgress- to continue onProgress- to continue onExhibit- to get Exhibit- to get neuron- what impulses made ofneuron- what impulses made ofCerebellum- controls balance and Cerebellum- controls balance and

how you movehow you move

Nerve- brain cellsNerve- brain cellsCerebrum- Controls how you moveCerebrum- Controls how you moveMyelin- protective layerMyelin- protective layerSynapse- allows neutron to pass Synapse- allows neutron to pass

something electricalsomething electricalBrain- controls all your activity and Brain- controls all your activity and

feelings.feelings.Hypothalamus- controls temperatureHypothalamus- controls temperature

• The central nervous system- controls The central nervous system- controls what you do including breathing, what you do including breathing, walking, thinking and feeling.walking, thinking and feeling.

• The peripheral nervous system- has The peripheral nervous system- has nerves and ganglia outside of the brain nerves and ganglia outside of the brain and spinal cord.and spinal cord.

• Axon-long threadlike part of a nerve cellAxon-long threadlike part of a nerve cell• Medulla- inner region of a organ or Medulla- inner region of a organ or

tissuetissue

• Reflex- something responded without conscious.

• Reflex Arc- nerve pathway involved in a reflex action.

• Response- reaction• Receptor- organ or cell able to respond to

light, heat and sends it to the sensory nerve.• Innate Behavior- known as hard wiring of the

nervous system• Learned Behavior- behavior someone or

something learns.• Inter neurons- a neuron that sends impulses

to other neurons.

CreditsCredits

WWW.Innerbody.comWWW.Library.thinkquest.orgWWW.Kidshealth.org

WWW.Brainpop.comWWW.Brainpop.com

WWW.K12station.comWWW.K12station.com

WWW.Nationalgeorgaphic.comWWW.Nationalgeorgaphic.com