nervous system 6 th grade health mr. springer. nervous system fast facts the brain weighs about 3...
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Nervous System6th Grade
HealthMr. Springer
Nervous System Fast Facts
The brain weighs about 3 pounds
Gross Picture Alert!
Nervous System Fast Facts
The brain contains about 10 billion cells that regulate:
Your conscious actsEx. Walking, talking, playing the piano
Your involuntary functions Ex. Coughing, blinking, swallowing, breathing
And your emotionsEx. Love, anger
Nervous System Fast Facts
The nervous system requires oxygen to do it’s work.
Ex. 15 seconds without oxygen will cause us to lose consciousness
Ex. 4 minutes without oxygen will cause irreparable damage to the brain and even death
The Job Of The Nervous System
Sends and interprets “messages”
Allows the entire body, inside and out, to work together
Neurons
(Nerve Cell)- specialized cells that carry information from the brain to the body and from the body to the brain
Real life
Microscope images of nerves!
Vocabulary
Central Nervous System- includes the brain and spinal cord, it’s the body’s main control center
Vocabulary
Peripheral Nervous System- includes the nerves that connect the CNS to all parts of the body
Sensory Nerves & Motor Nerves
You have two types of nerves:
Sensory- carries messages from the sense receptors to the brain and spinal cord
Motor- carries messages from the brain to the muscles, glands, and other body structures, resulting in actions
Parts Of The Brain
Cerebrum- it’s the largest part of the brain, it controls your ability to think, memorize, and learn. It also receives messages for your senses (sight, hearing, smell, touch, and taste)
Cerebellum- it controls balance, posture, and coordination.
Medulla- it controls you involuntary muscle actions such as breathing.
Medulla
Cerebellum
Cerebrum
Problems With The Nervous System
MS (Multiple Sclerosis)- degenerative disease in which the protective outer coating of nerves is damaged, thus the nerves no longer work properly
Problems with thinking and memory
Problems With The Nervous System
Parkinson’s – Shaking and stiffness of the arms and legs.
Epilepsy – Seizures, as a result of abnormal electrical activity in brain.
Alzheimer’s – affects mostly older people, it is inflamed areas in the brain and death of neurons (atrophy). Leads to memory loss and dementia
Neck/Spine Injuries
Can lead to paralysis (loss of feeling and mobility in parts of the body)
FACT: The medulla is part of your spinal cord. If you break your neck, you may damage this part of your brain. If this part of your brain is damaged the result can be death because your organs shut down!
Brain Diagram Without Labels
Brain Diagram (W/Labels)
http://www.edhelper.com/teachers/health_Brain_with_Labels.htm
Nervous System Diagram(W/O Labels)
http://www.edhelper.com/teachers/health_Nervous_System.htm
Nervous System Diagram (W/Labels)
http://www.edhelper.com/teachers/health_Nervous_System_with_Labels.htm
Review
At this website, we will connect nerves from different body parts to the section of the spinal cord they connect to.
Notice the parts of the brain that light up.(
That section of the brain controls the body part)
Click Here>>>>>>
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