The Brain - 1/23/08 The Brain About 3 lbs About 100 billion...

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1/23/08 The Brain - About 3 lbs - About 100 billion neurons - Been studied for about 2400 years I. History of Neuroscience a. Egyptians disposed of brain during mummification b. Hippocrates i. Materialist - Humans are nothing more than physical matter ii. Brain controlled thought, sensation and action c. Plato i. Dualist - Soul is separate and lives in separate organs d. Aristotle i. Touching brain does not produce sensation ii. Brain must cool blood e. Galen(129-199 A.D) i. Brain is center of sensation and volitional(deliberate) motion ii. Ventricles of brain house the soul f. i. Neural tissue is responsible for sensation, action, and thought II. Anatomy of a Neuron a. Dendrites receive message b. Myelin sheath c. Axon terminals contain synaptic vesicles which contain neurotransmitters d. Neurotransmitters transverse synapse to synaptic receptors in dendrite III. Anatomy of the Brain a. Hindbrain i. Cerebellum
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This note was uploaded on 04/20/2008 for the course PSY U466 taught by Professor Soderstrom during the Spring '08 term at Northeastern.

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The Brain - 1/23/08 The Brain About 3 lbs About 100 billion...

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