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Parasympathetic

Questions

QuestionAnswer
What chemical Neurotransmitter does the Parasympathetic division of the ANS employ? Acetylcholine
What are Parasympathetic Fibers termed? Cholinergic
What are the general functions of the Parasympathetic division of the ANS? helps maintain quiet activity; Metabolic Recovery
What are some of the effects the Parasympathetic ANS? Decreases HR/BP, Constricts Pupils, Increases Digestive activity, normalizes Respiratory rate/volume, enables Sexual arousal
Do ANS fiber merge or travel with Spinal Nerves? Not Parasympathetic
Which Cranial Nerves do Parasympathetic fibers travel with? III: Oculomotor, VII: Facial, IX: Glossopharyngeal, X: Vagus
Where do the Parasympathetic Cranial Fibers arise and terminate? Brain ---> Cranial Nerves ---> Effector: Iris, Salivary glands, Heart, Bronchioles, G.I. tract, Gallbladder
Where does the Parasympathetic division exit? Brain and S-2 --> S-4
Where do the Sacral Fibers exit? Ventral Roots at S-2 --> S-4 then independently to ganglia
Do Parasympathetic Fibers terminate int the Paravertebral Ganglia? No, Parasympathetic ganglia terminate near Visceral Effector
Where do Parasympathetic POSTganglionic fibers terminate? end in Pelvic Viscera: Colon, Bladder, Genitalia, Reproductive tract
Describe the PRE and POSTganglia? PREganglion = LONG; POSTganglion = SHORT
Created by: kristel387