* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Nervous System Organization
Neuroscience in space wikipedia , lookup
Molecular neuroscience wikipedia , lookup
Sensory substitution wikipedia , lookup
Neuroeconomics wikipedia , lookup
Neural coding wikipedia , lookup
Endocannabinoid system wikipedia , lookup
Neuroplasticity wikipedia , lookup
Time perception wikipedia , lookup
Executive functions wikipedia , lookup
Optogenetics wikipedia , lookup
Clinical neurochemistry wikipedia , lookup
Development of the nervous system wikipedia , lookup
Synaptic gating wikipedia , lookup
Caridoid escape reaction wikipedia , lookup
Neuropsychology wikipedia , lookup
Neural engineering wikipedia , lookup
Brain Rules wikipedia , lookup
Embodied language processing wikipedia , lookup
Metastability in the brain wikipedia , lookup
Neuroethology wikipedia , lookup
Channelrhodopsin wikipedia , lookup
Psychoneuroimmunology wikipedia , lookup
Premovement neuronal activity wikipedia , lookup
Embodied cognitive science wikipedia , lookup
Evoked potential wikipedia , lookup
Central pattern generator wikipedia , lookup
Feature detection (nervous system) wikipedia , lookup
Neuropsychopharmacology wikipedia , lookup
Nervous system network models wikipedia , lookup
Circumventricular organs wikipedia , lookup
Stimulus (physiology) wikipedia , lookup
November 18-19, 2013 Nervous System Fun Facts Which “fact” is false? 1) All body functions are controlled and regulated by the nervous system 2) There are more neurons in the brain then there are stars in the Milky Way galaxy 3) The left side of the body is controlled by the right side of the brain and vice-versa 4) The brain reaches maturity at around 25 years of age. The endocrine system also controls and regulates some body functions, especially metabolism, growth, and reproduction. Nervous System Functions The nervous system has three major functions: 1) Sensory input 2) Integration 3) Motor output Nervous System Functions 1) Sensory input – the body gathers information, or stimuli, from the internal or external environment Ex) seeing a bright light Nervous System Functions 2) Integration– the body processes information and makes a decision about what should be done Example: “decision” to initiate flight – orfight response Nervous System Functions 3) Motor Output– the body activates muscles or glands to effect a response. Example: moving your arm to grab a chip Nervous System Functions Which function(s) are demonstrated in these examples? You hear a buzzing sound. Sensory input You weigh the pros and cons of two different universities, and make a choice. integration You move your leg Motor output You touch a hot stove and jerk your hand back. Sensory input, integration, motor output Nervous System Organization The nervous system can be organized by structure and by function. Nervous System Organization Structurally, the nervous system is organized into The central nervous system, which consists of the brain and spinal cord, and which acts to integrate (interpret & issue instructions for) stimuli The peripheral nervous system which consists of all the nerves outside the brain and spinal cord. These receive stimuli and effect responses in muscles and glands. Nervous System Organization Nervous System Organization The peripheral nervous system can be further divided into: 1) Afferent or sensory neurons - bring stimuli -- affect the body by internal or external information 2) Efferent or motor neurons -- cause muscles or glands to respond -- effect a change / response Mneumonic: A comes before E Nervous System Organization The efferent / motor neurons can be further divided into: 1) Somatic neurons - neurons that control skeletal muscles - mostly voluntary 2) Autonomic neurons -- neurons that control smooth and cardiac muscle and glands - involuntary Nervous System Organization Determine which parts of the nervous system are involved in these: You hear a buzzing sound. You weigh the pros and cons of two different universities, and make a choice. You move your leg You touch a hot stove and jerk your hand back. Nervous System Organization Determine which parts of the nervous system are involved in these: You hear a buzzing sound. You weigh the pros and cons of two different universities, and make a choice. You move your leg You touch a hot stove and jerk your hand back. Afferent (peripheral) Central nervous system Central nervous system 1) Afferent (peripheral) 2) Central nervous system 3) somatic (efferent, peripheral) Exit Ticket – Complete two vocab mini posters Closure What were our objectives today and what are your biggest take-aways? How does what we did today relate to our unit objective? How does what we did today related to LP or TOK? Homework Complete neuroglia reading and worksheet, if not yet done Read chapter 7