Human System PresentationDale Schroll

University Of Phoenix Axia College

The Nervous System

The Nervous System

What is the nervous system?Made up of the brain and the spinal cord it is an enormous network of nerves that thread throughout your body, the control center for your entire body! The brain uses information it receives from your nerves to coordinate all your actions and reactions. Without the nervous system you could not exist.Image from:http://www.encognitive.com/node/1115

What are these nerves?They are thin threads of nerve cells called neurons that run throughout your body.

How do nerves pass along messages?It is sort of electricity, neurons are very small and some can be up to three feet long! All of them are shaped somewhat like flat stars which have been pulled and are similar to fingers, where the fingers of one neuron almost reach to the next neuron.Image from:http://www.dollarstoretoybox.com/category/toy-recalls/page/2/

It kind of reminds me of…….Falling dominoes the way these neurons pass on the message.Image: http://my.barackobama.com/page/community/post/kay24/gGxSlt

Peripheral nervous system

Autonomic Nervous System

Sympathetic division

• (Fight or flight)

Parasympathetic division• (Time to rest)

Somatic DivisionImage from:http://www.lifetrek-slovenia.com/en/news.php?id=105 This part of the nervous system controls the actions of the body, walking, talking, reaching for a glass of water or any other voluntary movement the body makes!

References• NA, (2010) “The parts of the nervous system” Erupting mind self improvement tips Retrieved, September 4,2010

http://www.eruptingmind.com/basic-functions-nervous-system/

• NA, (2010) “The nervous system, your gross body” Discovery, Retrieved September 5, 2010• http://yucky.discovery.com/flash/body/pg000136.html

NA, (2010) “ Central nervous system” Ecognitive.com, Retrieved September 3, 2010http://www.encognitive.com/node/1115

NA, (2010) “ Human Nervous system” Human Nervous System. Retrieved September,4 2010http://www.human-nervous-system.com/

NA, (2010) “ Nervous System” Wikipedia, Retrieved September 4, 2010http://en.wikipedia.org/wiki/Nervous_system