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The Nervous System S Organization of the Nervous System S The nervous system is broken up into the central and peripheral nervous system S The central nervous system is made up of the brain and spinal cord Organization of the Nervous System S The peripheral nervous system is made up of everything to the periphery of the body including nerves Autonomic Nervous System S The autonomic nervous system is part of the peripheral nervous system S It consists of the sympathetic and parasympathetic divisions Somatic Nervous System S The somatic nervous system is also a part of the peripheral nervous system S It consists of motor and sensory nerves. S The motor nerves control voluntary movements of the skeletal muscles S The sensory nerves innervate things like taste, touch, smell, vision, and reflexes. Concept Map Brain Anatomy Cerebellum Lobes of the Cerebral Hemispheres S Frontal lobes: complex planning, motor functions, reasoning, judgment, impulse control, higher order functions S Parietal lobes: pain and touch sensation, spatial orientation, object recognition S Temporal lobes: language and speech S Occipital lobes: vision S Cerebellum: balance, posture, and movement (not a lobe…) Interior Cross-Section Cerebrum Pituitary gland Corpus callosum Hypothalamus Midbrain Thalamus Pons Medulla oblongata Cerebellum Interior Functions S Corpus callosum: connects the right and the left cerebral hemispheres S Thalamus: sensory relay station; receives auditory, visual, and somatosensory signals S Pituitary Gland: produces, stores, and regulates hormones S Midbrain: movement related to vision and audition S Pons: arousal, sleep S Medulla oblongata: respiration rate, blood pressure, digestion Limbic System Limbic System Functions S Hippocampus: memory, spatial orientation S Amygdala: emotions, fear, aggression S Hypothalamus: hunger, thirst, homeostasis, sexual arousal General Functions S Right hemisphere: facial recognition, music, creativity, intuition S Left hemisphere: language, logic, critical thinking, numbers, reasoning S Broca’s area: speech production S Wernicke’s area: speech comprehension S Limbic System: emotions and memory Somatosensory Cortex S The “little man” is called the homunculus S It is located in the somatosensory cortex S The cortex is part of the parietal lobes S It controls touch sensation and pain Homunculus Videos S Hemispatial neglect: http://www.youtube.com/watch ?v=d4FhZs-m7hA S Phantoms in the Brain: http://topdocumentaryfilms.com /phantoms-in-the-brain/ Videos S Penfield: http://www.youtube.com/watch?v=68MiW2KK1us S Split-Brain: http://www.youtube.com/watch?v=lfGwsAdS9Dc S http://www.youtube.com/watch?v=ZMLzP1VCANo S Phantom Limb: S http://www.youtube.com/watch?v=m8GO1vwBNpY Videos S Neurons that Shaped Civilization: http://www.ted.com/talks/vs_ramachandran_the_neurons_that_ shaped_civilization.html S Ramachandran 3 Clues: http://www.ted.com/talks/vilayanur_ramachandran_on_your_m ind.html S Jill Bolte Taylor: http://www.ted.com/talks/jill_bolte_taylor_s_powerful_stroke_of _insight.html
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