NS115 Lecture 2 - NS 8/31/09 Lecture 2 Modulation of a...

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NS 8/31/09 Lecture 2 Modulation of a Meal: The Autonomic Nervous System No class Wednesday First Food Record due Friday Two fundamental mechanisms: one devoted to love, one devoted to hate Love = assimilation of energy; eating Hate = dissipation of energy Central Control System = brain; there to coordinate the actions of the assimilation and dissipation of energy Brain: - coordinates actions - anticipates actions Autonomic Nervous System: a. parasympathetic (the love component) i. has long neurons; uniquely oriented structurally; primary function is to assimilate energy – responsible for getting food into us, breaking it up through digestion, to our tissues. i.e. eye. ii. Assimilates Energy iii. Discrete Enervation iv. Acetylcholine b. Sympathetic (the hate component) i. Bundled neurons, units wired together; when the sympathetic goes off, all parts of it go off. i.e. spinal chord ii. Uses energy iii. “fight or flight” iv. Networked Enervation v. Norepinephrine Pupil: symp = opens, para = closes
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This note was uploaded on 11/05/2009 for the course NS 1150 taught by Professor Levitsky during the Fall '05 term at Cornell University (Engineering School).

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NS115 Lecture 2 - NS 8/31/09 Lecture 2 Modulation of a...

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