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The Nervous System

The Nervous System. Our Control Center. What controls our body functions?. When you Blink? When you breath? When you smell a fart? When you are hungry? Have to go pee?. The Nervous System. Brain Anatomy Functions. Sensory system Anatomy Functions. Central Control. The Brain

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The Nervous System

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  1. The Nervous System Our Control Center

  2. What controls our body functions? • When you Blink? • When you breath? • When you smell a fart? • When you are hungry? • Have to go pee?

  3. The Nervous System • Brain • Anatomy • Functions • Sensory system • Anatomy • Functions

  4. Central Control The Brain Cerebral Cortex (Cerebrum) Cerebellum Pons Medulla Oblongata (Brain Stem) Spinal Cord

  5. Cerebral Cortex • Largest part of the brain • Responsible for: • Motor Skills, Judgment, Analytical reasoning • Emotions, Sensations, Storing data • Memory, Speech

  6. Cerebellum • Coordination • Balance • Reflex motor activity

  7. Pons • Consciousness • Sleep

  8. Medulla Oblongata • Brain Stem • Breathing • Pumping the heart • Hunger • Urination • Swallowing • Gag reflex

  9. Nervous Systems Central Nervous System Peripheral Nervous System All of the other sensory nerves • Brain • Spinal Cord • Retina

  10. Spinal Cord • 43 cm long in females / 45 cm in males • Connects the peripheral nerves to the brain • Nerve “Roots” extend to connect to certain sections of the body

  11. Spinal Cord

  12. Nerve Cells Neurons Ganglia Connect with multiple cells to make up nerve tissues

  13. Sensory Organs • Eye • Ear • Olfactory Cells • Taste Buds

  14. Eye Cornea Lens Iris Pupil Retina Optic Nerve

  15. Ear Outer ear Middle ear Inner ear

  16. Olfactory System Cells that detect odors in the air and sends chemical messages to the brain

  17. Taste Buds Papallea Average: 10,000 in your mouth Sends signal to brain about what you are tasting Bitter Sweet Sour Salty

  18. Papillae Small hair like cells that taste what you eat

  19. The Nervous System Problems • Severe a nerve = loss of signal flow • Compress nerves = impede nerve flow • Epilepsy = Seizures • Cataracts = Clouding of the lens in the eye • Otitis media = inner ear infection

  20. The Nervous System • Controls everything that our body does

  21. The Nervous System • Without it we are unplugged

  22. Works cited • Buzzle.com [Internet]. 2000-2010. [Date accessed 2010 Sept. 27] Available from: http://www.buzzle.com/articles/diagram-of-the-brain-and-its-functions.html • Epilepsy foundation [Internet]. Landover, MD. [Date accessed 2010 Sept. 27] Available from: http://www.epilepsyfoundation.org/about/ • Kids health [Internet]. 1995-2010. [Date accessed 2010 Sept. 27]. Available from: http://kidshealth.org/kid/talk/qa/taste_buds.html • National institute of deafness and other communication disorders [Internet]. Bethesda, MD [Date updated 2010 Sept.; Date Accessed 2010 Sept. 27]. Available from: http://www.nidcd.nih.gov/health/hearing/earinfections • Science Week [Internet]. 2004. [Date accessed 2010 Sept. 27]. Available from: http://scienceweek.com/2004/sa041217-3.htm • Anatomy, Physiology and pathology of the human eye [Internet]. 1998-2010. [Date accessed 2010 Sept. 27]. Available from: http://www.tedmontgomery.com/the_eye/index.html • The Human eye [Internet]. [Date updated 2009 Nov.; Date accessed 2010 Sept. 27]. Available from: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/V/Vision.html

  23. Works cited - images • http://blogs.guardian.co.uk/food/taste_buds440.jpg • http://www.brainhealthandpuzzles.com/diagram_of_brain.html • http://www.eu-sol.net/images/copy3_of_images/Tongue.jpg • http://www.freedomscientific.com/images/resources/human_eye.jpg • http://www.holisticeducator.com/Neuron.jpg • http://theveryessence.com/images/Smell.jpg • http://www.zmescience.com/wp-content/uploads/2008/08/the-human-ear.gif

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