ANAT1053 Study Guide - Midterm Guide: Preganglionic Nerve Fibers, Sympathetic Nervous System, Anterior Pituitary

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Activates when we need to respond to an unusual stimulus: takes over to mobilize energy and prepare the body to respond. Remember as the e division: exercise: excitement. Parasympathetic division: parasympathetic housekeeping or rest and digest response. Maintains daily necessary body functions remember as the d division: conserves energy, digestion defecation diuresis. Parasympathetic division preganglionic neurons originate from the craniosacral regions: The cranial nerves iii, vii, ix, and x (cn 3, 7, 9, 10) s2 through s4 regions of the spinal cord (s2, S3, s4: ganglia are close to the effector organs preganglionic fibers are long postganglionic fibers are short, preganglionic neurotransmitter: acetylcholine postganglionic neurotransmitter: acetylcholine. Summary: the autonomic nervous system is a pns subdivision consisting of visceral motor fibres controlling involuntary activities of cardiac muscle, smooth muscle and glands, two subdivisions of ans: sympathetic & parasympathetic. Pleura and pleural fluid: consider pleura;

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