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Final

ANS Notes for Final Exam.docx

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Department
Physiology
Course
PHYSL212
Professor
John Greer
Semester
Fall

Description
Autonomic Nervous SystemNOT under conscious control Autonomic tone balance between sympathetic and parasympathetic activity Made up of 2 neurons that connect the CNS and the effector cells CNSpreganglionic neuronsgangliapostganglionic neuronseffector1 Sympathetic fight or flightTHORACOLUMBARSynapse at ganglion All neurons are in lateral horn of gray matterLead to every part of the bodyPathway CNSpreganglionic fiber synapse quicklyacetylcholine releasedautonomic ganglionpostganglionic fibernorepinephrine releasedvarious organsDilation of pupils and airwaysIncrease heart rate and blood pressureincreases blood supply to skeletal and cardiac muscles liver and adipose tissueConstriction of blood vessels that supply kidneys and gastrointestinal tractIncreases glycogenolysis to increase blood sugarIncreases lipolysisInvolves thoracic and lumbar nervesAdrenal medulla innervated by preganglionic nervescan cause bodywide release of epinephrine adrenalinenorepinep
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