There are two divisions of the autonomic nervous system: Sympathetic and parasympathetic Describe in detail the pre and post ganglionic fibers, location of the ganglia, neurotransmitters and receptors associated with each system
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There are two divisions of the autonomic nervous system: Sympathetic and parasympathetic
Describe in detail the pre and post ganglionic fibers, location of the ganglia, neurotransmitters and receptors associated with each system
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- In the sympathetic division of the autonomic nervous system: Select one: The ratio between the number of postganglionic and preganglionic neurons is small. A single preganglionic neuron usually synapses with a single postganglionic neuron. An important functional characteristic is convergence of the preganglionic fibers. Preganglionic fibers are usually much longer than the postganglionic fibers. Activity of the neurons tends to have a more generalized and widespread effect on the body.Name and locate the ganglia of the sympathetic and parasympathetic nervous systemsMatch the following statements about anatomy to the correct division of the autonomic nervous system. Select "Both" if the statement or effect is true of both divisions. Innervate(s) most major organs of the body. Innervate(s) most blood vessels. Most effector pathways involve two neurons. The vagus cranial nerve carries these fibers. ANSWER OPTIONS: Parasympathetic, Sympathetic, BOTH
- The autonomic nervous system consists of: The sympathetic and parasympathetic divisions The cerebral hemisphere and the corpus callosum The somatic nervous system The cerebellum and medulla oblongata The brain and spinal cordClassify the following characteristics to demonstrate your knowledge of differences between the sympathetic and parasympathetic divisions of the autonomic nervous system. Sympathetic Nervous System Most ganglia lie close to the spinal cord and form two chains of ganglia-one on each side of the spinal cord Increases intestinal motility and stimulates intestinal secretion Postganglionic axons are generally short Preganglionic axons are generally short Postganglionic axons release NE that binds to adrenergic receptors located on the effectors Decreases heart rate, contractility, and conduction velocity Ganglia lie within, or very close to, innervated organs Decreases intestinal motility and inhibits intestinal secretion Long preganglionic axons release ACh that binds to nicotinic receptors located within the ganglia Neurons leave the CNS from the thoracic and lumbar regions of the spinal cord Parasympathetic Nervous System Generalized activation is called the fight-or-flight response…Which of these characterize the parasympathetic division of the autonomic nervous system? Preganglionic fibers are myelinated; postganglionic fibers are not. Preganglionic fibers arise from the thoracic and lumbar regions of the spinal cord. Terminal ganglia are located close to effector organs. Parasympathetic postganglionic fibers secrete acetylcholine.
- Which of the following is not correct about the parasympathetic division? Select one: O A. parasympathetic nerves constitute a part of the autonomic nervous system O B. the neurotransmitter released by preganglionic neurons is acetylcholine O C. parasympathetic nerves always form synapses in ganglia near or within an internal organ O D. the neurotransmitter released by postganglionic neurons is acetylcholine O E. parasympathetic nerves exit the central nervous system at the thoracic and lumbar regions of the spinal cordWhich of the following is NOT a true statement about autonomic nervous system? Parasympathetic cell bodies are located in ganglia within (or near) their target tissues Preganglionic sympathetic neurons release acetylcholine Preganglionic parasympathetic neurons are located in the thoracic and lumbar spinal cord Most postganglionic sympathetic neurons release norepinephrineCompare the primary mechanisms used by the sympathetic and parasympathetic divisions to clear or remove neurotransmitters? In other words, how do they terminate their neurotransmitter activity? How do they differ from each other? Question #2 Barbra Streisand, age 79, has asthma. We are considering an adrenergic drug for treatment. For Ms. Streisand, what are the drug advantages and diadvantages associciated with the use of ephedrine isoproterenol metaproterenol albuterol terbutaline Would her age be a factor in selecting the best drug? Explain. Question #3 Steven Seagal, age 69, has hypertension and asthma. We are considering treating him with an adrenergic blocker. What are the advantages and disadvantages for each of the drugs below to treat high blood pressure? doxazosin prazosin propranolol metoprolol atenolol acebutolol What needs to be included when teaching individuals suffering from high blood pressure about the use of an adrenergic blocker?
- There are two divisions of the autonomic nervous system: Sympathetic and parasympathetic Describe 5 effects of parasympathetic activation. How does this help the body return to normal activities after exertion?In the sympathetic division of the autonomic system: preganglionic neurons originate in the thoracolumbar segments of the cord the preganglionic neurons are unmyelinated the preganglionic neurons are long the neurotransmitter released by the preganglionic neurons is norepinephrineState whether each of the following is a characteristic of the sympathetic or parasympathetic nervous system: short preganglionic fibers; origin from thoracolumbar region of spinal cord; terminal ganglia; collateral ganglia; innervates adrenal medulla.