Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Dual innervation means that visceral effectors are innervated by preganglionic axons from both parasympathetic and sympathetic (ANS) divisions.
A. True
B False
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- Compare and contrast the basic anatomy of the parasympathetic and sympathetic systems, includingcentral nervous system locations, ganglia locations, pre- and post-ganglionic neuron relative lengths,and ganglionic and effector neurotransmitters.arrow_forwardDescribe the differences in both structure & function between the sympathetic & parasympathetic nervesarrow_forwardDescribe how the sympathetic and parasympathetic nervous system affects the following organs: heart, eyes, gastrointestinal systemarrow_forward
- Cell bodies of the sympathetic preganglionic neurons are part of ...arrow_forwardWhich of the following could be used to describe the parasympathetic nervous system? Select all that apply. Short preganglionic, long postganglionic fibers. O long preganglionic, short postganglionic fibers. Known to be active during "rest and digest" responses. Stimulates ciliary muscles of the eye, which makes the lens bulge for close vision. O Active during "fight or flight" responses. increases heart rate « Previous Nextarrow_forward2) Fill in the chart below on the anatomical differences between sympathetic and parasympathetic systems. Sympathetic Parasympathetic Origin Length of Fibers Location of ganglia Preganglionic Neurotransmitters Postganglionic Neurotransmittersarrow_forward
- What causes the membrane potential to steadily depolarize to threshold with no ANS input? (please let answer be short. 3-4 sentences should suffice)arrow_forwardWhich sentence is accurate? Postganglionic and preganglionic fibers located in the sympathetic division are the same length. Postganglionic and preganglionic fibers in the parasympathetic are the same length. Postganglionic fibers are known to be shorter than preganglionic fibers in the sympathetic division. Postganglionic fibers are known to be shorter than preganglionic fibers in the parasympathetic division.arrow_forwardDescribe how depolarisation of a preganglionic parasympathetic neuron leads to the autonomic regulation of an effector organ (e.g. sinoatrial node).arrow_forward
- Compare and contrast the organization of the parasympathetic and sympathetic divisions.arrow_forwardThe ANS is subdivided into sympathetic and parasympathetic divisions. Review the differences between these two divisions by filling in the table below: Characteristic Sympathetic or Parasympathetic? Calms you down — "rest and digest" ["", ""] Pumps you up — "fight or flight" ["", ""] Preganglionic neuron long, postganglionic neuron short ["", ""] Preganglionic neuron short, postganglionic neuron long ["", ""] Arises from cranial or sacral spinal nerves ["", ""] Arises from spinal nerves T1-L2 ["", ""] Synapses near the spinal cord ["", ""] Synapses near the target organ ["", ""] Increases heart and respiratory rate ["", ""] Stimulates…arrow_forwardGive Detailed explanation Solution (don't give Handwritten)arrow_forward
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