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NROB60H3 (151)
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nrob60L1.docx

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Department
Neuroscience
Course
NROB60H3
Professor
lebout
Semester
Winter

Description
AUTONOMIC NERVOUS SYSTEM ANS also called efferent nervous system Affects visceral organs and fat breakdown and hormone release Key part incontrolling homeostasisInvoluntary control of smooth muscle cardiac muscle glands adipose tissueHomeostasis maintained by preservation of internal and external environmentConsists of 2 antagonistic branches sympathetic and parasympatheticantagonisticopposing actionsSympatheticParasympatheticFight or flightRest and digestEnergetic actionRoutine body functionStimulatory effectInhibitory effectMost internal organs are under antagonistic control where one autonomic branch is excitatory and the other is inhibitoryExceptionsSweat glands and unspecified smooth muscle solely activated by sympatheticSometimes 2 autonomic branches work cooperativelyeg blood flow to penisparasympatheticmuscle contraction ejaculationsympatheticCranial nerves 811All body functionsCranial nerves 18Heart LungsSalivary GlandsEyeThoracic nervesHeartLungsDigestive systemKidneyLumbar nervesRectumBladderGenitaliaSacral nervesDigestive systemRectumBladderGenitaliaSpecialization in the spinal cordGrey MatterThe dorsal root receives afferent in coming nerves terminate in the dorsal hornEfferent outgoing nerves originate in the ventral horn terminate on musclesglandsAutonomic sympathetic and parasympathetic pathways
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