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The Nervous and Respiratory systems
The major Organs of the nervous system are the brain,spinal cord, and the retina.
Diseases in the Nervous System
Parkinsons disease- no known cure for parkinsons disease.
The Nervous system is a complex collection of nerves that transmits signals to different parts of the body.
The brain- an organ of soft nervous tissue in the skull of vertebrates functioning as the coordinationcenter of nervous activity.
Spinal cord- a bundle of nerve fibers and associated tissues enclosed in the spine.
The respiratory system is responsible for taking in oxygen and expelling carbon dioxide
Epilepsy- keep head protected especialy in the car
Lungs- Take in oxygen and release carbon dioxide
1. There are more brain cells in the human brain than there are stars in the Milkyway.
2. If all the neurons in the body were lined up it would be 600 miles long.
3. Neurons are the biggest cell in the body.
Trachea- Filters air we breathe and branches it to the bronchi
4. Only 4% of the brains cells work while the rest are in reserve.
5. 100,000,000,000 neurons are in the brain.
Bronchi- Tubes that branch off the trachea and carries air directly to the lungs
Diaphragm- The diaphragm is the main muscle used in breathing.
How the nervous system works with the muscular system
Regulates the speed at which food moves through the digestive system.
Controls the contraction of the skeletal muscle.
Autonomic Nervous system and Voluntary Nervous system.
Autonomic Nervous System- controls involuntary muscles, such as smooth and cardiac muscle.
Voluntary Nervous System- the system involved with voluntary movements such as skeletal muscle movements.
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Elizabeth Coolidge-Stoltz, and Dawn Graff-Haight. Human Biology and Health. Needham, MA: Prentice Hall, 2002. Print.
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Zimmermann, Kim Ann. "Nervous System: Facts, Function & Diseases." LiveScience. TechMedia Network, 24 Aug. 2012. Web. 23 Feb. 2014.
Diaphragm- A dome-shaped muscle at the bottom of the lungs
Diseases in the Respiratory System
Bronchitis- is an inflammation of the lining of the bronchial tubes, the airways that connect the trachea (windpipe) to the lungs. THe cure for Bronchitis is medicine
Most mammals have two lungs
An average person breathes in around 11,000 liters of air every day
When resting an adults heart beats 12 to 20 times a minute.
The study of lung disease is called pulmonology
We breathe 13 pints of air every minute